42631723980 has 60 divisors (see below), whose sum is σ = 133737302160. Its totient is φ = 11368459296.

The previous prime is 42631723969. The next prime is 42631724011. The reversal of 42631723980 is 8932713624.

42631723980 is a `hidden beast` number, since 4 + 2 + 631 + 7 + 2 + 3 + 9 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13156320 + ... + 13159559.

It is an arithmetic number, because the mean of its divisors is an integer number (2228955036).

Almost surely, 2^42631723980 is an apocalyptic number.

It is an amenable number.

42631723980 is an abundant number, since it is smaller than the sum of its proper divisors (91105578180).

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

42631723980 is a wasteful number, since it uses less digits than its factorization.

42631723980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26315900 (or 26315889 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 42631723980 in words is "forty-two billion, six hundred thirty-one million, seven hundred twenty-three thousand, nine hundred eighty".