472704347621 has 6 divisors (see below), whose sum is σ = 519584117766. Its totient is φ = 429731225000.

The previous prime is 472704347573. The next prime is 472704347663. The reversal of 472704347621 is 126743407274.

It can be written as a sum of positive squares in only one way, i.e., 279597712900 + 193106634721 = 528770^2 + 439439^2 .

It is a de Polignac number, because none of the positive numbers 2^k-472704347621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472704347671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1953323630 + ... + 1953323871.

It is an arithmetic number, because the mean of its divisors is an integer number (86597352961).

Almost surely, 2^472704347621 is an apocalyptic number.

It is an amenable number.

472704347621 is a deficient number, since it is larger than the sum of its proper divisors (46879770145).

472704347621 is a wasteful number, since it uses less digits than its factorization.

472704347621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906647523 (or 3906647512 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 47.

The spelling of 472704347621 in words is "four hundred seventy-two billion, seven hundred four million, three hundred forty-seven thousand, six hundred twenty-one".