55863657468 has 36 divisors (see below), whose sum is σ = 143604322680. Its totient is φ = 18305604576.

The previous prime is 55863657461. The next prime is 55863657491. The reversal of 55863657468 is 86475636855.

55863657468 is a `hidden beast` number, since 5 + 58 + 6 + 3 + 6 + 574 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55863657461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13148455 + ... + 13152702.

Almost surely, 2^55863657468 is an apocalyptic number.

It is an amenable number.

55863657468 is an abundant number, since it is smaller than the sum of its proper divisors (87740665212).

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

55863657468 is a wasteful number, since it uses less digits than its factorization.

55863657468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26301226 (or 26301221 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 55863657468 in words is "fifty-five billion, eight hundred sixty-three million, six hundred fifty-seven thousand, four hundred sixty-eight".