625806236463 has 16 divisors (see below), whose sum is σ = 867517357056. Its totient is φ = 400953389760.

The previous prime is 625806236459. The next prime is 625806236507. The reversal of 625806236463 is 364632608526.

It is not a de Polignac number, because 625806236463 - 2² = 625806236459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625806236563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37960831 + ... + 37977312.

It is an arithmetic number, because the mean of its divisors is an integer number (54219834816).

Almost surely, 2^625806236463 is an apocalyptic number.

625806236463 is a deficient number, since it is larger than the sum of its proper divisors (241711120593).

625806236463 is a wasteful number, since it uses less digits than its factorization.

625806236463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75938254.

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 625806236463 in words is "six hundred twenty-five billion, eight hundred six million, two hundred thirty-six thousand, four hundred sixty-three".