64149813677430 has 128 divisors (see below), whose sum is σ = 184249136816640. Its totient is φ = 15788663579520.

The previous prime is 64149813677381. The next prime is 64149813677459. The reversal of 64149813677430 is 3477631894146.

It is a happy number.

64149813677430 is a `hidden beast` number, since 6 + 4 + 1 + 498 + 1 + 36 + 77 + 43 + 0 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25807249 + ... + 28183571.

It is an arithmetic number, because the mean of its divisors is an integer number (1439446381380).

Almost surely, 2^{64149813677430} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64149813677430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92124568408320).

64149813677430 is an abundant number, since it is smaller than the sum of its proper divisors (120099323139210).

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

64149813677430 is a wasteful number, since it uses less digits than its factorization.

64149813677430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384043 (or 2384037 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 63.

The spelling of 64149813677430 in words is "sixty-four trillion, one hundred forty-nine billion, eight hundred thirteen million, six hundred seventy-seven thousand, four hundred thirty".