620534776772 has 12 divisors (see below), whose sum is σ = 1086475871376. Its totient is φ = 310113099240.

The previous prime is 620534776669. The next prime is 620534776793. The reversal of 620534776772 is 277677435026.

It is a happy number.

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, 38563238 + ... + 38579325.

It is an arithmetic number, because the mean of its divisors is an integer number (90539655948).

Almost surely, 2^620534776772 is an apocalyptic number.

It is an amenable number.

620534776772 is a deficient number, since it is larger than the sum of its proper divisors (465941094604).

620534776772 is a wasteful number, since it uses less digits than its factorization.

620534776772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77144578 (or 77144576 counting only the distinct ones).

The product of its (nonzero) digits is 20744640, while the sum is 56.

The spelling of 620534776772 in words is "six hundred twenty billion, five hundred thirty-four million, seven hundred seventy-six thousand, seven hundred seventy-two".