672457899825 has 36 divisors (see below), whose sum is σ = 1212423346368. Its totient is φ = 356269068000.

The previous prime is 672457899823. The next prime is 672457899829. The reversal of 672457899825 is 528998754276.

672457899825 is a `hidden beast` number, since 6 + 7 + 2 + 457 + 8 + 99 + 82 + 5 = 666.

It is not a de Polignac number, because 672457899825 - 2¹ = 672457899823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672457899823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9862389 + ... + 9930338.

It is an arithmetic number, because the mean of its divisors is an integer number (33678426288).

Almost surely, 2^672457899825 is an apocalyptic number.

It is an amenable number.

672457899825 is a deficient number, since it is larger than the sum of its proper divisors (539965446543).

672457899825 is a wasteful number, since it uses less digits than its factorization.

672457899825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19792894 (or 19792886 counting only the distinct ones).

The product of its digits is 609638400, while the sum is 72.

The spelling of 672457899825 in words is "six hundred seventy-two billion, four hundred fifty-seven million, eight hundred ninety-nine thousand, eight hundred twenty-five".