464410450611621 has 6 divisors (see below), whose sum is σ = 670815095327910. Its totient is φ = 309606967074408.

The previous prime is 464410450611617. The next prime is 464410450611641. The reversal of 464410450611621 is 126116054014464.

464410450611621 is a `hidden beast` number, since 4 + 6 + 4 + 4 + 1 + 0 + 4 + 5 + 0 + 6 + 11 + 621 = 666.

It can be written as a sum of positive squares in only one way, i.e., 339027116210721 + 125383334400900 = 18412689^2 + 11197470^2 .

It is not a de Polignac number, because 464410450611621 - 2² = 464410450611617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464410450611641) 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, 25800580589526 + ... + 25800580589543.

It is an arithmetic number, because the mean of its divisors is an integer number (111802515887985).

Almost surely, 2^{464410450611621} is an apocalyptic number.

It is an amenable number.

464410450611621 is a deficient number, since it is larger than the sum of its proper divisors (206404644716289).

464410450611621 is a wasteful number, since it uses less digits than its factorization.

464410450611621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51601161179075 (or 51601161179072 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 464410450611621 in words is "four hundred sixty-four trillion, four hundred ten billion, four hundred fifty million, six hundred eleven thousand, six hundred twenty-one".