725743673145 has 48 divisors (see below), whose sum is σ = 1264818806784. Its totient is φ = 384952464000.

The previous prime is 725743673119. The next prime is 725743673173. The reversal of 725743673145 is 541376347527.

725743673145 is a `hidden beast` number, since 7 + 2 + 574 + 3 + 67 + 3 + 1 + 4 + 5 = 666.

It is not a de Polignac number, because 725743673145 - 2²⁵ = 725710118713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725743673091 and 725743673100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70654360 + ... + 70664630.

It is an arithmetic number, because the mean of its divisors is an integer number (26350391808).

Almost surely, 2^725743673145 is an apocalyptic number.

It is an amenable number.

725743673145 is a deficient number, since it is larger than the sum of its proper divisors (539075133639).

725743673145 is a wasteful number, since it uses less digits than its factorization.

725743673145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18694 (or 18691 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 54.

The spelling of 725743673145 in words is "seven hundred twenty-five billion, seven hundred forty-three million, six hundred seventy-three thousand, one hundred forty-five".