74352576981 has 16 divisors (see below), whose sum is σ = 101364367104. Its totient is φ = 48457050624.

The previous prime is 74352576973. The next prime is 74352576989. The reversal of 74352576981 is 18967525347.

It is an interprime number because it is at equal distance from previous prime (74352576973) and next prime (74352576989).

It is not a de Polignac number, because 74352576981 - 2³ = 74352576973 is a prime.

It is a super-2 number, since 2×74352576981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74352576989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186820 + ... + 428493.

It is an arithmetic number, because the mean of its divisors is an integer number (6335272944).

Almost surely, 2^74352576981 is an apocalyptic number.

It is an amenable number.

74352576981 is a deficient number, since it is larger than the sum of its proper divisors (27011790123).

74352576981 is a wasteful number, since it uses less digits than its factorization.

74352576981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616220.

The product of its digits is 12700800, while the sum is 57.

The spelling of 74352576981 in words is "seventy-four billion, three hundred fifty-two million, five hundred seventy-six thousand, nine hundred eighty-one".