53864678688 has 48 divisors (see below), whose sum is σ = 141898036896. Its totient is φ = 17890987520.

The previous prime is 53864678663. The next prime is 53864678689. The reversal of 53864678688 is 88687646835.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×53864678688² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53864678689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971406 + ... + 1025357.

It is an arithmetic number, because the mean of its divisors is an integer number (2956209102).

Almost surely, 2^53864678688 is an apocalyptic number.

It is an amenable number.

53864678688 is an abundant number, since it is smaller than the sum of its proper divisors (88033358208).

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

53864678688 is a wasteful number, since it uses less digits than its factorization.

53864678688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997057 (or 1997049 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 69.

The spelling of 53864678688 in words is "fifty-three billion, eight hundred sixty-four million, six hundred seventy-eight thousand, six hundred eighty-eight".