461444135615 has 32 divisors (see below), whose sum is σ = 592066685952. Its totient is φ = 344396448000.

The previous prime is 461444135609. The next prime is 461444135627. The reversal of 461444135615 is 516531444164.

It is not a de Polignac number, because 461444135615 - 2¹⁴ = 461444119231 is a prime.

It is a super-2 number, since 2×461444135615² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19937600 + ... + 19960730.

It is an arithmetic number, because the mean of its divisors is an integer number (18502083936).

Almost surely, 2^461444135615 is an apocalyptic number.

461444135615 is a deficient number, since it is larger than the sum of its proper divisors (130622550337).

461444135615 is a wasteful number, since it uses less digits than its factorization.

461444135615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27431.

The product of its digits is 691200, while the sum is 44.

Adding to 461444135615 its reverse (516531444164), we get a palindrome (977975579779).

The spelling of 461444135615 in words is "four hundred sixty-one billion, four hundred forty-four million, one hundred thirty-five thousand, six hundred fifteen".