461420890881 has 4 divisors (see below), whose sum is σ = 615227854512. Its totient is φ = 307613927252.

The previous prime is 461420890867. The next prime is 461420890883. The reversal of 461420890881 is 188098024164.

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 not a de Polignac number, because 461420890881 - 2²⁹ = 460884019969 is a prime.

It is a super-2 number, since 2×461420890881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (461420890883) 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, 76903481811 + ... + 76903481816.

It is an arithmetic number, because the mean of its divisors is an integer number (153806963628).

Almost surely, 2^461420890881 is an apocalyptic number.

It is an amenable number.

461420890881 is a deficient number, since it is larger than the sum of its proper divisors (153806963631).

461420890881 is a wasteful number, since it uses less digits than its factorization.

461420890881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153806963630.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 461420890881 in words is "four hundred sixty-one billion, four hundred twenty million, eight hundred ninety thousand, eight hundred eighty-one".