55729763964 has 48 divisors (see below), whose sum is σ = 165125228800. Its totient is φ = 15922789488.

The previous prime is 55729763933. The next prime is 55729763983. The reversal of 55729763964 is 46936792755.

55729763964 is a `hidden beast` number, since 557 + 2 + 9 + 76 + 3 + 9 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 36857554 + ... + 36859065.

Almost surely, 2^55729763964 is an apocalyptic number.

55729763964 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55729763964 is an abundant number, since it is smaller than the sum of its proper divisors (109395464836).

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

55729763964 is a wasteful number, since it uses less digits than its factorization.

55729763964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73716639 (or 73716631 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 63.

The spelling of 55729763964 in words is "fifty-five billion, seven hundred twenty-nine million, seven hundred sixty-three thousand, nine hundred sixty-four".