620729665292 has 48 divisors (see below), whose sum is σ = 1193366109600. Its totient is φ = 280166131200.

The previous prime is 620729665289. The next prime is 620729665307. The reversal of 620729665292 is 292566927026.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 23043992 + ... + 23070912.

It is an arithmetic number, because the mean of its divisors is an integer number (24861793950).

Almost surely, 2^620729665292 is an apocalyptic number.

It is an amenable number.

620729665292 is a deficient number, since it is larger than the sum of its proper divisors (572636444308).

620729665292 is a wasteful number, since it uses less digits than its factorization.

620729665292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30602 (or 30600 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 620729665292 in words is "six hundred twenty billion, seven hundred twenty-nine million, six hundred sixty-five thousand, two hundred ninety-two".