42405451236 has 48 divisors (see below), whose sum is σ = 116407126080. Its totient is φ = 13303670400.

The previous prime is 42405451229. The next prime is 42405451237. The reversal of 42405451236 is 63215450424.

42405451236 is a `hidden beast` number, since 42 + 40 + 545 + 1 + 2 + 36 = 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 42405451236.

It is not an unprimeable number, because it can be changed into a prime (42405451237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11546490 + ... + 11550161.

It is an arithmetic number, because the mean of its divisors is an integer number (2425148460).

Almost surely, 2^42405451236 is an apocalyptic number.

It is an amenable number.

42405451236 is an abundant number, since it is smaller than the sum of its proper divisors (74001674844).

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

42405451236 is a wasteful number, since it uses less digits than its factorization.

42405451236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23096681 (or 23096673 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 42405451236 in words is "forty-two billion, four hundred five million, four hundred fifty-one thousand, two hundred thirty-six".