74162553720 has 128 divisors (see below), whose sum is σ = 235773633600. Its totient is φ = 18597666816.

The previous prime is 74162553697. The next prime is 74162553721. The reversal of 74162553720 is 2735526147.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74162553721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2508786 + ... + 2538174.

Almost surely, 2^74162553720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74162553720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117886816800).

74162553720 is an abundant number, since it is smaller than the sum of its proper divisors (161611079880).

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

74162553720 is a wasteful number, since it uses less digits than its factorization.

74162553720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30657 (or 30653 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 74162553720 in words is "seventy-four billion, one hundred sixty-two million, five hundred fifty-three thousand, seven hundred twenty".