74347042056 has 32 divisors (see below), whose sum is σ = 212420120640. Its totient is φ = 21242011968.

The previous prime is 74347042051. The next prime is 74347042069. The reversal of 74347042056 is 65024074347.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 74347041999 and 74347042017.

It is not an unprimeable number, because it can be changed into a prime (74347042051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221270791 + ... + 221271126.

It is an arithmetic number, because the mean of its divisors is an integer number (6638128770).

Almost surely, 2^74347042056 is an apocalyptic number.

It is an amenable number.

74347042056 is an abundant number, since it is smaller than the sum of its proper divisors (138073078584).

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

74347042056 is a wasteful number, since it uses less digits than its factorization.

74347042056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442541933 (or 442541929 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 74347042056 in words is "seventy-four billion, three hundred forty-seven million, forty-two thousand, fifty-six".