74631497472 has 576 divisors, whose sum is σ = 259054924800. Its totient is φ = 21015355392.

The previous prime is 74631497401. The next prime is 74631497509. The reversal of 74631497472 is 27479413647.

It is a happy number.

74631497472 is a `hidden beast` number, since 7 + 463 + 1 + 49 + 74 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (7112448) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 536917179 + ... + 536917317.

Almost surely, 2^74631497472 is an apocalyptic number.

74631497472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74631497472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129527462400).

74631497472 is an abundant number, since it is smaller than the sum of its proper divisors (184423427328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74631497472 is an equidigital number, since it uses as much as digits as its factorization.

74631497472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 288 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 74631497472 in words is "seventy-four billion, six hundred thirty-one million, four hundred ninety-seven thousand, four hundred seventy-two".