620650653626 has 8 divisors (see below), whose sum is σ = 985739273460. Its totient is φ = 292070895808.

The previous prime is 620650653617. The next prime is 620650653629. The reversal of 620650653626 is 626356056026.

It can be written as a sum of positive squares in 2 ways, for example, as 620620962025 + 29691601 = 787795^2 + 5449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (620650653629) 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, 9127215461 + ... + 9127215528.

Almost surely, 2^620650653626 is an apocalyptic number.

620650653626 is a deficient number, since it is larger than the sum of its proper divisors (365088619834).

620650653626 is a wasteful number, since it uses less digits than its factorization.

620650653626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18254431008.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 620650653626 in words is "six hundred twenty billion, six hundred fifty million, six hundred fifty-three thousand, six hundred twenty-six".