53909446866 has 32 divisors (see below), whose sum is σ = 117629625600. Its totient is φ = 16334944080.

The previous prime is 53909446859. The next prime is 53909446907. The reversal of 53909446866 is 66864490935.

It is a super-2 number, since 2×53909446866² (a number of 22 digits) contains 22 as substring.

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, 1201545 + ... + 1245603.

It is an arithmetic number, because the mean of its divisors is an integer number (3675925800).

Almost surely, 2^53909446866 is an apocalyptic number.

53909446866 is an abundant number, since it is smaller than the sum of its proper divisors (63720178734).

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

53909446866 is a wasteful number, since it uses less digits than its factorization.

53909446866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62614.

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 53909446866 in words is "fifty-three billion, nine hundred nine million, four hundred forty-six thousand, eight hundred sixty-six".