64186268146 has 96 divisors (see below), whose sum is σ = 130977310464. Its totient is φ = 22955011200.

The previous prime is 64186268129. The next prime is 64186268147.

It is a happy number.

64186268146 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64186268093 and 64186268102.

It is not an unprimeable number, because it can be changed into a prime (64186268147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3977931 + ... + 3994033.

It is an arithmetic number, because the mean of its divisors is an integer number (1364346984).

Almost surely, 2^64186268146 is an apocalyptic number.

64186268146 is an abundant number, since it is smaller than the sum of its proper divisors (66791042318).

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

64186268146 is a wasteful number, since it uses less digits than its factorization.

64186268146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16328 (or 16317 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 52.

The spelling of 64186268146 in words is "sixty-four billion, one hundred eighty-six million, two hundred sixty-eight thousand, one hundred forty-six".