6425140636 has 12 divisors (see below), whose sum is σ = 11244858520. Its totient is φ = 3212323920.

The previous prime is 6425140573. The next prime is 6425140637. The reversal of 6425140636 is 6360415246.

It is a junction number, because it is equal to n+sod(n) for n = 6425140595 and 6425140604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425140637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5095 + ... + 113473.

Almost surely, 2^6425140636 is an apocalyptic number.

It is an amenable number.

6425140636 is a deficient number, since it is larger than the sum of its proper divisors (4819717884).

6425140636 is a wasteful number, since it uses less digits than its factorization.

6425140636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123204 (or 123202 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 6425140636 is about 80156.9749678716. The cubic root of 6425140636 is about 1859.0634507329.

The spelling of 6425140636 in words is "six billion, four hundred twenty-five million, one hundred forty thousand, six hundred thirty-six".