725621357542370 has 8 divisors (see below), whose sum is σ = 1306118443576284. Its totient is φ = 290248543016944.

The previous prime is 725621357542343. The next prime is 725621357542481. The reversal of 725621357542370 is 73245753126527.

It can be written as a sum of positive squares in 2 ways, for example, as 723832587714769 + 1788769827601 = 26904137^2 + 1337449^2 .

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

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, 36281067877109 + ... + 36281067877128.

Almost surely, 2^{725621357542370} is an apocalyptic number.

725621357542370 is a deficient number, since it is larger than the sum of its proper divisors (580497086033914).

725621357542370 is a wasteful number, since it uses less digits than its factorization.

725621357542370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72562135754244.

The product of its (nonzero) digits is 74088000, while the sum is 59.

The spelling of 725621357542370 in words is "seven hundred twenty-five trillion, six hundred twenty-one billion, three hundred fifty-seven million, five hundred forty-two thousand, three hundred seventy".