855637461423 has 32 divisors (see below), whose sum is σ = 1320730859520. Its totient is φ = 546865007040.

The previous prime is 855637461383. The next prime is 855637461431. The reversal of 855637461423 is 324164736558.

855637461423 is a `hidden beast` number, since 8 + 5 + 563 + 7 + 46 + 14 + 23 = 666.

It is not a de Polignac number, because 855637461423 - 2⁸ = 855637461167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 855637461423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855637461473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4687390 + ... + 4866507.

It is an arithmetic number, because the mean of its divisors is an integer number (41272839360).

Almost surely, 2^855637461423 is an apocalyptic number.

855637461423 is a deficient number, since it is larger than the sum of its proper divisors (465093398097).

855637461423 is a wasteful number, since it uses less digits than its factorization.

855637461423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9554044 (or 9554038 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 855637461423 in words is "eight hundred fifty-five billion, six hundred thirty-seven million, four hundred sixty-one thousand, four hundred twenty-three".