64136863146 has 16 divisors (see below), whose sum is σ = 130376575008. Its totient is φ = 21028479600.

The previous prime is 64136863127. The next prime is 64136863157.

64136863146 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64136863146² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64136863095 and 64136863104.

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, 87618300 + ... + 87619031.

It is an arithmetic number, because the mean of its divisors is an integer number (8148535938).

Almost surely, 2^64136863146 is an apocalyptic number.

64136863146 is an abundant number, since it is smaller than the sum of its proper divisors (66239711862).

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

64136863146 is a wasteful number, since it uses less digits than its factorization.

64136863146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175237397.

The product of its digits is 1492992, while the sum is 48.

The spelling of 64136863146 in words is "sixty-four billion, one hundred thirty-six million, eight hundred sixty-three thousand, one hundred forty-six".