64424945364 has 96 divisors (see below), whose sum is σ = 167849558016. Its totient is φ = 19098771840.

The previous prime is 64424945359. The next prime is 64424945369. The reversal of 64424945364 is 46354942446.

It is an interprime number because it is at equal distance from previous prime (64424945359) and next prime (64424945369).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64424945369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068429 + ... + 1127115.

It is an arithmetic number, because the mean of its divisors is an integer number (1748432896).

Almost surely, 2^64424945364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64424945364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83924779008).

64424945364 is an abundant number, since it is smaller than the sum of its proper divisors (103424612652).

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

64424945364 is a wasteful number, since it uses less digits than its factorization.

64424945364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58965 (or 58963 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 51.

The spelling of 64424945364 in words is "sixty-four billion, four hundred twenty-four million, nine hundred forty-five thousand, three hundred sixty-four".