731342138025 has 48 divisors (see below), whose sum is σ = 1277387537600. Its totient is φ = 368186031360.

The previous prime is 731342137979. The next prime is 731342138041. The reversal of 731342138025 is 520831243137.

731342138025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 731342138025 - 2⁸ = 731342137769 is a prime.

It is a super-2 number, since 2×731342138025² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 531670 + ... + 1321119.

Almost surely, 2^731342138025 is an apocalyptic number.

731342138025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

731342138025 is a deficient number, since it is larger than the sum of its proper divisors (546045399575).

731342138025 is a wasteful number, since it uses less digits than its factorization.

731342138025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853098 (or 1853093 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 731342138025 in words is "seven hundred thirty-one billion, three hundred forty-two million, one hundred thirty-eight thousand, twenty-five".