464861262720021 has 16 divisors (see below), whose sum is σ = 629114656481280. Its totient is φ = 305265603310640.

The previous prime is 464861262720011. The next prime is 464861262720047. The reversal of 464861262720021 is 120027262168464.

It is a cyclic number.

It is not a de Polignac number, because 464861262720021 - 2⁹ = 464861262719509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464861262720011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989088381 + ... + 989558258.

It is an arithmetic number, because the mean of its divisors is an integer number (39319666030080).

Almost surely, 2^{464861262720021} is an apocalyptic number.

It is an amenable number.

464861262720021 is a deficient number, since it is larger than the sum of its proper divisors (164253393761259).

464861262720021 is a wasteful number, since it uses less digits than its factorization.

464861262720021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978647816.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 464861262720021 in words is "four hundred sixty-four trillion, eight hundred sixty-one billion, two hundred sixty-two million, seven hundred twenty thousand, twenty-one".