472505627572661 has 4 divisors (see below), whose sum is σ = 472636624423392. Its totient is φ = 472374630721932.

The previous prime is 472505627572633. The next prime is 472505627572679. The reversal of 472505627572661 is 166275726505274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472505627572661 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 (472505627572361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65498419955 + ... + 65498427168.

It is an arithmetic number, because the mean of its divisors is an integer number (118159156105848).

Almost surely, 2^{472505627572661} is an apocalyptic number.

It is an amenable number.

472505627572661 is a deficient number, since it is larger than the sum of its proper divisors (130996850731).

472505627572661 is a wasteful number, since it uses less digits than its factorization.

472505627572661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130996850730.

The product of its (nonzero) digits is 296352000, while the sum is 65.

The spelling of 472505627572661 in words is "four hundred seventy-two trillion, five hundred five billion, six hundred twenty-seven million, five hundred seventy-two thousand, six hundred sixty-one".