461312640100461 has 4 divisors (see below), whose sum is σ = 615083520133952. Its totient is φ = 307541760066972.

The previous prime is 461312640100313. The next prime is 461312640100471. The reversal of 461312640100461 is 164001046213164.

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 not a de Polignac number, because 461312640100461 - 2⁴⁵ = 426128268011629 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 (461312640100471) 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, 76885440016741 + ... + 76885440016746.

It is an arithmetic number, because the mean of its divisors is an integer number (153770880033488).

Almost surely, 2^{461312640100461} is an apocalyptic number.

It is an amenable number.

461312640100461 is a deficient number, since it is larger than the sum of its proper divisors (153770880033491).

461312640100461 is a wasteful number, since it uses less digits than its factorization.

461312640100461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153770880033490.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 461312640100461 in words is "four hundred sixty-one trillion, three hundred twelve billion, six hundred forty million, one hundred thousand, four hundred sixty-one".