672129625454 has 16 divisors (see below), whose sum is σ = 1153123123200. Its totient is φ = 287830326744.

The previous prime is 672129625441. The next prime is 672129625477. The reversal of 672129625454 is 454526921276.

It is a super-2 number, since 2×672129625454² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 672129625396 and 672129625405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18750374 + ... + 18786185.

It is an arithmetic number, because the mean of its divisors is an integer number (72070195200).

Almost surely, 2^672129625454 is an apocalyptic number.

672129625454 is a deficient number, since it is larger than the sum of its proper divisors (480993497746).

672129625454 is a wasteful number, since it uses less digits than its factorization.

672129625454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37537847.

The product of its digits is 7257600, while the sum is 53.

The spelling of 672129625454 in words is "six hundred seventy-two billion, one hundred twenty-nine million, six hundred twenty-five thousand, four hundred fifty-four".