673837915968 has 168 divisors, whose sum is σ = 2323530755520. Its totient is φ = 182392197120.

The previous prime is 673837915913. The next prime is 673837915969. The reversal of 673837915968 is 869519738376.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 673837915896 and 673837915905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673837915969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4321353 + ... + 4474568.

Almost surely, 2^673837915968 is an apocalyptic number.

It is an amenable number.

673837915968 is an abundant number, since it is smaller than the sum of its proper divisors (1649692839552).

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

673837915968 is a wasteful number, since it uses less digits than its factorization.

673837915968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8795965 (or 8795952 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 72.

The spelling of 673837915968 in words is "six hundred seventy-three billion, eight hundred thirty-seven million, nine hundred fifteen thousand, nine hundred sixty-eight".