42495531042780 has 48 divisors (see below), whose sum is σ = 132208318801440. Its totient is φ = 11332141611264.

The previous prime is 42495531042763. The next prime is 42495531042799. The reversal of 42495531042780 is 8724013559424.

It is a happy number.

42495531042780 is a `hidden beast` number, since 4 + 2 + 4 + 9 + 5 + 531 + 0 + 4 + 27 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 39347713389 + ... + 39347714468.

It is an arithmetic number, because the mean of its divisors is an integer number (2754339975030).

Almost surely, 2^{42495531042780} is an apocalyptic number.

It is an amenable number.

42495531042780 is an abundant number, since it is smaller than the sum of its proper divisors (89712787758660).

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

42495531042780 is a wasteful number, since it uses less digits than its factorization.

42495531042780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78695427875 (or 78695427867 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 42495531042780 in words is "forty-two trillion, four hundred ninety-five billion, five hundred thirty-one million, forty-two thousand, seven hundred eighty".