6457122440725 has 24 divisors (see below), whose sum is σ = 8736435868032. Its totient is φ = 4695169564800.

The previous prime is 6457122440687. The next prime is 6457122440731. The reversal of 6457122440725 is 5270442217546.

It is not a de Polignac number, because 6457122440725 - 2¹³ = 6457122432533 is a prime.

It is a super-2 number, since 2×6457122440725² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

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, 890077 + ... + 3702226.

It is an arithmetic number, because the mean of its divisors is an integer number (364018161168).

Almost surely, 2^{6457122440725} is an apocalyptic number.

It is an amenable number.

6457122440725 is a deficient number, since it is larger than the sum of its proper divisors (2279313427307).

6457122440725 is a wasteful number, since it uses less digits than its factorization.

6457122440725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597437 (or 4597432 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 49.

The spelling of 6457122440725 in words is "six trillion, four hundred fifty-seven billion, one hundred twenty-two million, four hundred forty thousand, seven hundred twenty-five".