351728707138725 has 24 divisors (see below), whose sum is σ = 664599766632640. Its totient is φ = 160790266120320.

The previous prime is 351728707138591. The next prime is 351728707138741. The reversal of 351728707138725 is 527831707827153.

It is not a de Polignac number, because 351728707138725 - 2²⁴ = 351728690361509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334979720560 + ... + 334979721609.

Almost surely, 2^{351728707138725} is an apocalyptic number.

351728707138725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

351728707138725 is a deficient number, since it is larger than the sum of its proper divisors (312871059493915).

351728707138725 is a wasteful number, since it uses less digits than its factorization.

351728707138725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669959442189 (or 669959442184 counting only the distinct ones).

The product of its (nonzero) digits is 138297600, while the sum is 66.

The spelling of 351728707138725 in words is "three hundred fifty-one trillion, seven hundred twenty-eight billion, seven hundred seven million, one hundred thirty-eight thousand, seven hundred twenty-five".