42997521804 has 192 divisors, whose sum is σ = 107519892480. Its totient is φ = 13357854720.

The previous prime is 42997521803. The next prime is 42997521839. The reversal of 42997521804 is 40812579924.

It is not an unprimeable number, because it can be changed into a prime (42997521803) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218261434 + ... + 218261630.

It is an arithmetic number, because the mean of its divisors is an integer number (559999440).

Almost surely, 2^42997521804 is an apocalyptic number.

It is an amenable number.

42997521804 is an abundant number, since it is smaller than the sum of its proper divisors (64522370676).

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

42997521804 is a wasteful number, since it uses less digits than its factorization.

42997521804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 42997521804 in words is "forty-two billion, nine hundred ninety-seven million, five hundred twenty-one thousand, eight hundred four".