7940499975 has 36 divisors (see below), whose sum is σ = 14434618536. Its totient is φ = 4171717440.

The previous prime is 7940499953. The next prime is 7940499977. The reversal of 7940499975 is 5799940497.

7940499975 is a `hidden beast` number, since 79 + 4 + 0 + 499 + 9 + 75 = 666.

It is not a de Polignac number, because 7940499975 - 2²⁶ = 7873391111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940499977) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 248292 + ... + 278441.

It is an arithmetic number, because the mean of its divisors is an integer number (400961626).

Almost surely, 2^7940499975 is an apocalyptic number.

7940499975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7940499975 is a deficient number, since it is larger than the sum of its proper divisors (6494118561).

7940499975 is a wasteful number, since it uses less digits than its factorization.

7940499975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526816 (or 526808 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The square root of 7940499975 is about 89109.4830812075. The cubic root of 7940499975 is about 1995.0293209929.

The spelling of 7940499975 in words is "seven billion, nine hundred forty million, four hundred ninety-nine thousand, nine hundred seventy-five".