625040314340642 has 64 divisors (see below), whose sum is σ = 1003902631999488. Its totient is φ = 291323319552000.

The previous prime is 625040314340627. The next prime is 625040314340833. The reversal of 625040314340642 is 246043413040526.

It is a happy number.

It is a super-2 number, since 2×625040314340642² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625040314340593 and 625040314340602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817389842 + ... + 818154162.

It is an arithmetic number, because the mean of its divisors is an integer number (15685978624992).

Almost surely, 2^{625040314340642} is an apocalyptic number.

625040314340642 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

625040314340642 is a deficient number, since it is larger than the sum of its proper divisors (378862317658846).

625040314340642 is a wasteful number, since it uses less digits than its factorization.

625040314340642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767955.

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 625040314340642 in words is "six hundred twenty-five trillion, forty billion, three hundred fourteen million, three hundred forty thousand, six hundred forty-two".