461155420187 has 16 divisors (see below), whose sum is σ = 575119118592. Its totient is φ = 359234322720.

The previous prime is 461155420183. The next prime is 461155420213. The reversal of 461155420187 is 781024551164.

It is not a de Polignac number, because 461155420187 - 2² = 461155420183 is a prime.

It is a super-2 number, since 2×461155420187² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461155420183) 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, 636968 + ... + 1152405.

It is an arithmetic number, because the mean of its divisors is an integer number (35944944912).

Almost surely, 2^461155420187 is an apocalyptic number.

461155420187 is a deficient number, since it is larger than the sum of its proper divisors (113963698405).

461155420187 is a wasteful number, since it uses less digits than its factorization.

461155420187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792738.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 461155420187 in words is "four hundred sixty-one billion, one hundred fifty-five million, four hundred twenty thousand, one hundred eighty-seven".