74704081540 has 48 divisors (see below), whose sum is σ = 172027094400. Its totient is φ = 27024353280.

The previous prime is 74704081481. The next prime is 74704081549. The reversal of 74704081540 is 4518040747.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74704081493 and 74704081502.

It is not an unprimeable number, because it can be changed into a prime (74704081549) 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, 837240 + ... + 922159.

It is an arithmetic number, because the mean of its divisors is an integer number (3583897800).

Almost surely, 2^74704081540 is an apocalyptic number.

It is an amenable number.

74704081540 is an abundant number, since it is smaller than the sum of its proper divisors (97323012860).

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

74704081540 is a wasteful number, since it uses less digits than its factorization.

74704081540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759612 (or 1759610 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 74704081540 in words is "seventy-four billion, seven hundred four million, eighty-one thousand, five hundred forty".