56871429615 has 504 divisors, whose sum is σ = 140461342560. Its totient is φ = 21616657920.

The previous prime is 56871429613. The next prime is 56871429617. The reversal of 56871429615 is 51692417865.

It is a happy number.

56871429615 is a `hidden beast` number, since 5 + 6 + 8 + 7 + 14 + 2 + 9 + 615 = 666.

It is an interprime number because it is at equal distance from previous prime (56871429613) and next prime (56871429617).

It is not a de Polignac number, because 56871429615 - 2¹ = 56871429613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56871429611) 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 503 ways as a sum of consecutive naturals, for example, 521756181 + ... + 521756289.

It is an arithmetic number, because the mean of its divisors is an integer number (278693140).

Almost surely, 2^56871429615 is an apocalyptic number.

56871429615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56871429615 is an abundant number, since it is smaller than the sum of its proper divisors (83589912945).

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

56871429615 is a wasteful number, since it uses less digits than its factorization.

56871429615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 148 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 56871429615 in words is "fifty-six billion, eight hundred seventy-one million, four hundred twenty-nine thousand, six hundred fifteen".