74054645420 has 96 divisors (see below), whose sum is σ = 179617471488. Its totient is φ = 25121140992.

The previous prime is 74054645419. The next prime is 74054645429. The reversal of 74054645420 is 2454645047.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74054645429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27497594 + ... + 27500286.

It is an arithmetic number, because the mean of its divisors is an integer number (1871015328).

Almost surely, 2^74054645420 is an apocalyptic number.

74054645420 is a gapful number since it is divisible by the number (70) 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 74054645420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89808735744).

74054645420 is an abundant number, since it is smaller than the sum of its proper divisors (105562826068).

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

74054645420 is a wasteful number, since it uses less digits than its factorization.

74054645420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719 (or 4717 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

The spelling of 74054645420 in words is "seventy-four billion, fifty-four million, six hundred forty-five thousand, four hundred twenty".