42729613872 has 40 divisors (see below), whose sum is σ = 120419822400. Its totient is φ = 12948367680.

The previous prime is 42729613867. The next prime is 42729613897. The reversal of 42729613872 is 27831692724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40463122 + ... + 40464177.

It is an arithmetic number, because the mean of its divisors is an integer number (3010495560).

Almost surely, 2^42729613872 is an apocalyptic number.

It is an amenable number.

42729613872 is an abundant number, since it is smaller than the sum of its proper divisors (77690208528).

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

42729613872 is a wasteful number, since it uses less digits than its factorization.

42729613872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80927321 (or 80927315 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The spelling of 42729613872 in words is "forty-two billion, seven hundred twenty-nine million, six hundred thirteen thousand, eight hundred seventy-two".