42942131652 has 48 divisors (see below), whose sum is σ = 114543578240. Its totient is φ = 12265834752.

The previous prime is 42942131641. The next prime is 42942131657. The reversal of 42942131652 is 25613124924.

It is a self number, because there is not a number n which added to its sum of digits gives 42942131652.

It is not an unprimeable number, because it can be changed into a prime (42942131657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248778 + ... + 384414.

Almost surely, 2^42942131652 is an apocalyptic number.

42942131652 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42942131652 is an abundant number, since it is smaller than the sum of its proper divisors (71601446588).

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

42942131652 is a wasteful number, since it uses less digits than its factorization.

42942131652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139420 (or 139418 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The spelling of 42942131652 in words is "forty-two billion, nine hundred forty-two million, one hundred thirty-one thousand, six hundred fifty-two".