672745657100 has 72 divisors (see below), whose sum is σ = 1592712153648. Its totient is φ = 244613324800.

The previous prime is 672745657081. The next prime is 672745657169. The reversal of 672745657100 is 1756547276.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18057692 + ... + 18094908.

It is an arithmetic number, because the mean of its divisors is an integer number (22121002134).

Almost surely, 2^672745657100 is an apocalyptic number.

It is an amenable number.

672745657100 is an abundant number, since it is smaller than the sum of its proper divisors (919966496548).

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

672745657100 is a wasteful number, since it uses less digits than its factorization.

672745657100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53675 (or 53668 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 672745657100 in words is "six hundred seventy-two billion, seven hundred forty-five million, six hundred fifty-seven thousand, one hundred".