139497768036 has 81 divisors (see below), whose sum is σ = 387658375923. Its totient is φ = 42264581040.

The previous prime is 139497768023. The next prime is 139497768043. The reversal of 139497768036 is 630867794931.

The square root of 139497768036 is 373494.

It is a perfect power (a square), and thus also a powerful number.

139497768036 is a `hidden beast` number, since 1 + 39 + 497 + 7 + 6 + 80 + 36 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24647775 + ... + 24653433.

Almost surely, 2^139497768036 is an apocalyptic number.

139497768036 is the 373494-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139497768036

139497768036 is an abundant number, since it is smaller than the sum of its proper divisors (248160607887).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139497768036 is an equidigital number, since it uses as much as digits as its factorization.

139497768036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11350 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 139497768036 in words is "one hundred thirty-nine billion, four hundred ninety-seven million, seven hundred sixty-eight thousand, thirty-six".