42361987572 has 36 divisors (see below), whose sum is σ = 107092467300. Its totient is φ = 14119241472.

The previous prime is 42361987559. The next prime is 42361987573. The reversal of 42361987572 is 27578916324.

It is a happy number.

42361987572 is a `hidden beast` number, since 4 + 2 + 3 + 61 + 9 + 8 + 7 + 572 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3900502116 + 38461485456 = 62454^2 + 196116^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42361987573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340428 + ... + 447900.

Almost surely, 2^42361987572 is an apocalyptic number.

It is an amenable number.

42361987572 is an abundant number, since it is smaller than the sum of its proper divisors (64730479728).

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

42361987572 is a wasteful number, since it uses less digits than its factorization.

42361987572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118432 (or 118427 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 42361987572 in words is "forty-two billion, three hundred sixty-one million, nine hundred eighty-seven thousand, five hundred seventy-two".