64024077834 has 320 divisors, whose sum is σ = 161512952832. Its totient is φ = 18886348800.

The previous prime is 64024077743. The next prime is 64024077839. The reversal of 64024077834 is 43877042046.

It is a self number, because there is not a number n which added to its sum of digits gives 64024077834.

It is not an unprimeable number, because it can be changed into a prime (64024077839) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 265659954 + ... + 265660194.

Almost surely, 2^64024077834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64024077834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80756476416).

64024077834 is an abundant number, since it is smaller than the sum of its proper divisors (97488874998).

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

64024077834 is a wasteful number, since it uses less digits than its factorization.

64024077834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 64024077834 in words is "sixty-four billion, twenty-four million, seventy-seven thousand, eight hundred thirty-four".