3125463640 has 64 divisors (see below), whose sum is σ = 7701674400. Its totient is φ = 1134446592.

The previous prime is 3125463623. The next prime is 3125463659. The reversal of 3125463640 is 463645213.

It is a junction number, because it is equal to n+sod(n) for n = 3125463596 and 3125463605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20257 + ... + 81616.

Almost surely, 2^3125463640 is an apocalyptic number.

It is an amenable number.

3125463640 is an abundant number, since it is smaller than the sum of its proper divisors (4576210760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3125463640 is a wasteful number, since it uses less digits than its factorization.

3125463640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101956 (or 101952 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 3125463640 is about 55905.8462059202. The cubic root of 3125463640 is about 1462.0811690821.

The spelling of 3125463640 in words is "three billion, one hundred twenty-five million, four hundred sixty-three thousand, six hundred forty".