64531446126 has 16 divisors (see below), whose sum is σ = 147500448384. Its totient is φ = 18437556024.

The previous prime is 64531446113. The next prime is 64531446167. The reversal of 64531446126 is 62164413546.

It is a super-2 number, since 2×64531446126² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1536463003 = 64531446126 / (6 + 4 + 5 + 3 + 1 + 4 + 4 + 6 + 1 + 2 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768231460 + ... + 768231543.

It is an arithmetic number, because the mean of its divisors is an integer number (9218778024).

Almost surely, 2^64531446126 is an apocalyptic number.

64531446126 is an abundant number, since it is smaller than the sum of its proper divisors (82969002258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64531446126 is a wasteful number, since it uses less digits than its factorization.

64531446126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536463015.

The product of its digits is 414720, while the sum is 42.

The spelling of 64531446126 in words is "sixty-four billion, five hundred thirty-one million, four hundred forty-six thousand, one hundred twenty-six".