7125631407 has 24 divisors (see below), whose sum is σ = 10354697600. Its totient is φ = 4721801040.

The previous prime is 7125631391. The next prime is 7125631451. The reversal of 7125631407 is 7041365217.

It is a happy number.

7125631407 is a `hidden beast` number, since 7 + 12 + 5 + 631 + 4 + 0 + 7 = 666.

It is not a de Polignac number, because 7125631407 - 2⁴ = 7125631391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125631477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3342732 + ... + 3344862.

Almost surely, 2^7125631407 is an apocalyptic number.

7125631407 is a deficient number, since it is larger than the sum of its proper divisors (3229066193).

7125631407 is a wasteful number, since it uses less digits than its factorization.

7125631407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203 (or 4200 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 7125631407 is about 84413.4551300917. The cubic root of 7125631407 is about 1924.3074053759.

The spelling of 7125631407 in words is "seven billion, one hundred twenty-five million, six hundred thirty-one thousand, four hundred seven".