620685558988 has 12 divisors (see below), whose sum is σ = 1184945158152. Its totient is φ = 282129799520.

The previous prime is 620685558979. The next prime is 620685559001. The reversal of 620685558988 is 889855586026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7053244945 + ... + 7053245032.

It is an arithmetic number, because the mean of its divisors is an integer number (98745429846).

Almost surely, 2^620685558988 is an apocalyptic number.

It is an amenable number.

620685558988 is a deficient number, since it is larger than the sum of its proper divisors (564259599164).

620685558988 is a wasteful number, since it uses less digits than its factorization.

620685558988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14106489992 (or 14106489990 counting only the distinct ones).

The product of its (nonzero) digits is 331776000, while the sum is 70.

The spelling of 620685558988 in words is "six hundred twenty billion, six hundred eighty-five million, five hundred fifty-eight thousand, nine hundred eighty-eight".