621476732673 has 12 divisors (see below), whose sum is σ = 898868240868. Its totient is φ = 413773378560.

The previous prime is 621476732663. The next prime is 621476732683. The reversal of 621476732673 is 376237674126.

621476732673 is a `hidden beast` number, since 621 + 4 + 7 + 6 + 7 + 3 + 2 + 6 + 7 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (621476732663) and next prime (621476732683).

It can be written as a sum of positive squares in 2 ways, for example, as 171137761344 + 450338971329 = 413688^2 + 671073^2 .

It is not a de Polignac number, because 621476732673 - 2⁶ = 621476732609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621476732663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45363040 + ... + 45376737.

It is an arithmetic number, because the mean of its divisors is an integer number (74905686739).

Almost surely, 2^621476732673 is an apocalyptic number.

It is an amenable number.

621476732673 is a deficient number, since it is larger than the sum of its proper divisors (277391508195).

621476732673 is a wasteful number, since it uses less digits than its factorization.

621476732673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90740544 (or 90740541 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 54.

The spelling of 621476732673 in words is "six hundred twenty-one billion, four hundred seventy-six million, seven hundred thirty-two thousand, six hundred seventy-three".