427606636572 has 24 divisors (see below), whose sum is σ = 1108609798800. Its totient is φ = 142535545488.

The previous prime is 427606636553. The next prime is 427606636579. The reversal of 427606636572 is 275636606724.

427606636572 is a `hidden beast` number, since 4 + 2 + 7 + 6 + 0 + 6 + 63 + 6 + 572 = 666.

It is a super-2 number, since 2×427606636572² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427606636579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979660247 + ... + 1979660462.

It is an arithmetic number, because the mean of its divisors is an integer number (46192074950).

Almost surely, 2^427606636572 is an apocalyptic number.

It is an amenable number.

427606636572 is an abundant number, since it is smaller than the sum of its proper divisors (681003162228).

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

427606636572 is a wasteful number, since it uses less digits than its factorization.

427606636572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959320722 (or 3959320714 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 427606636572 in words is "four hundred twenty-seven billion, six hundred six million, six hundred thirty-six thousand, five hundred seventy-two".