42878785052072 has 64 divisors (see below), whose sum is σ = 85714083463680. Its totient is φ = 20062523633152.

The previous prime is 42878785052063. The next prime is 42878785052161. The reversal of 42878785052072 is 27025058787824.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19658678 + ... + 21730650.

It is an arithmetic number, because the mean of its divisors is an integer number (1339282554120).

Almost surely, 2^{42878785052072} is an apocalyptic number.

It is an amenable number.

42878785052072 is a deficient number, since it is larger than the sum of its proper divisors (42835298411608).

42878785052072 is a wasteful number, since it uses less digits than its factorization.

42878785052072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074442 (or 2074438 counting only the distinct ones).

The product of its (nonzero) digits is 140492800, while the sum is 65.

The spelling of 42878785052072 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred eighty-five million, fifty-two thousand, seventy-two".