42605252532540 has 48 divisors (see below), whose sum is σ = 132549674547360. Its totient is φ = 11361400675200.

The previous prime is 42605252532517. The next prime is 42605252532593. The reversal of 42605252532540 is 4523525250624.

It is a happy number.

42605252532540 is a `hidden beast` number, since 4 + 2 + 6 + 0 + 5 + 2 + 52 + 53 + 2 + 540 = 666.

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

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, 39449307361 + ... + 39449308440.

It is an arithmetic number, because the mean of its divisors is an integer number (2761451553070).

Almost surely, 2^{42605252532540} is an apocalyptic number.

It is an amenable number.

42605252532540 is an abundant number, since it is smaller than the sum of its proper divisors (89944422014820).

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

42605252532540 is a wasteful number, since it uses less digits than its factorization.

42605252532540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78898615819 (or 78898615811 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 45.

The spelling of 42605252532540 in words is "forty-two trillion, six hundred five billion, two hundred fifty-two million, five hundred thirty-two thousand, five hundred forty".