42123352536 has 64 divisors (see below), whose sum is σ = 117794700000. Its totient is φ = 13946871168.

The previous prime is 42123352511. The next prime is 42123352541. The reversal of 42123352536 is 63525332124.

42123352536 is a `hidden beast` number, since 4 + 2 + 123 + 3 + 525 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42123352536.

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, 622231 + ... + 686598.

Almost surely, 2^42123352536 is an apocalyptic number.

It is an amenable number.

42123352536 is an abundant number, since it is smaller than the sum of its proper divisors (75671347464).

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

42123352536 is a wasteful number, since it uses less digits than its factorization.

42123352536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308993 (or 1308983 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The spelling of 42123352536 in words is "forty-two billion, one hundred twenty-three million, three hundred fifty-two thousand, five hundred thirty-six".