42156801912 has 64 divisors (see below), whose sum is σ = 110995056000. Its totient is φ = 13305942144.

The previous prime is 42156801899. The next prime is 42156801923. The reversal of 42156801912 is 21910865124.

It is a congruent number.

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, 921123 + ... + 965805.

It is an arithmetic number, because the mean of its divisors is an integer number (1734297750).

Almost surely, 2^42156801912 is an apocalyptic number.

It is an amenable number.

42156801912 is an abundant number, since it is smaller than the sum of its proper divisors (68838254088).

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

42156801912 is a wasteful number, since it uses less digits than its factorization.

42156801912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46780 (or 46776 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 42156801912 in words is "forty-two billion, one hundred fifty-six million, eight hundred one thousand, nine hundred twelve".