64124417461 has 24 divisors (see below), whose sum is σ = 71820172424. Its totient is φ = 56911196160.

The previous prime is 64124417459. The next prime is 64124417477. The reversal of 64124417461 is 16471442146.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 131102500 + 63993314961 = 11450^2 + 252969^2 .

It is not a de Polignac number, because 64124417461 - 2¹ = 64124417459 is a prime.

It is a super-2 number, since 2×64124417461² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64124418461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2622685 + ... + 2647021.

Almost surely, 2^64124417461 is an apocalyptic number.

It is an amenable number.

64124417461 is a deficient number, since it is larger than the sum of its proper divisors (7695754963).

64124417461 is a wasteful number, since it uses less digits than its factorization.

64124417461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24649 (or 24620 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The spelling of 64124417461 in words is "sixty-four billion, one hundred twenty-four million, four hundred seventeen thousand, four hundred sixty-one".