725542678730 has 8 divisors (see below), whose sum is σ = 1305976821732. Its totient is φ = 290217071488.

The previous prime is 725542678723. The next prime is 725542678741. The reversal of 725542678730 is 37876245527.

It can be written as a sum of positive squares in 2 ways, for example, as 661621186801 + 63921491929 = 813401^2 + 252827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36277133927 + ... + 36277133946.

Almost surely, 2^725542678730 is an apocalyptic number.

725542678730 is a deficient number, since it is larger than the sum of its proper divisors (580434143002).

725542678730 is a wasteful number, since it uses less digits than its factorization.

725542678730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72554267880.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 725542678730 in words is "seven hundred twenty-five billion, five hundred forty-two million, six hundred seventy-eight thousand, seven hundred thirty".