74881547408 has 10 divisors (see below), whose sum is σ = 145082998134. Its totient is φ = 37440773696.

The previous prime is 74881547407. The next prime is 74881547413. The reversal of 74881547408 is 80474518847.

It can be written as a sum of positive squares in only one way, i.e., 59052888064 + 15828659344 = 243008^2 + 125812^2 .

It is a super-2 number, since 2×74881547408² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74881547401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2340048341 + ... + 2340048372.

Almost surely, 2^74881547408 is an apocalyptic number.

It is an amenable number.

74881547408 is a deficient number, since it is larger than the sum of its proper divisors (70201450726).

74881547408 is a wasteful number, since it uses less digits than its factorization.

74881547408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680096721 (or 4680096715 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 56.

The spelling of 74881547408 in words is "seventy-four billion, eight hundred eighty-one million, five hundred forty-seven thousand, four hundred eight".