6457940031 has 8 divisors (see below), whose sum is σ = 8611862400. Its totient is φ = 4304655512.

The previous prime is 6457940011. The next prime is 6457940063. The reversal of 6457940031 is 1300497546.

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

It is a cyclic number.

It is not a de Polignac number, because 6457940031 - 2⁷ = 6457939903 is a prime.

It is a super-2 number, since 2×6457940031² = 83409978887984561922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6457940011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135315 + ... + 176708.

It is an arithmetic number, because the mean of its divisors is an integer number (1076482800).

Almost surely, 2^6457940031 is an apocalyptic number.

6457940031 is a deficient number, since it is larger than the sum of its proper divisors (2153922369).

6457940031 is a wasteful number, since it uses less digits than its factorization.

6457940031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318925.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 6457940031 is about 80361.3092912255. The cubic root of 6457940031 is about 1862.2214979036.

The spelling of 6457940031 in words is "six billion, four hundred fifty-seven million, nine hundred forty thousand, thirty-one".