64424509401 has 32 divisors (see below), whose sum is σ = 99651686400. Its totient is φ = 36260864640.

The previous prime is 64424509399. The next prime is 64424509417. The reversal of 64424509401 is 10490542446.

It is not a de Polignac number, because 64424509401 - 2¹ = 64424509399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64424509401.

It is not an unprimeable number, because it can be changed into a prime (64424509451) 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, 648781 + ... + 741461.

It is an arithmetic number, because the mean of its divisors is an integer number (3114115200).

Almost surely, 2^64424509401 is an apocalyptic number.

It is an amenable number.

64424509401 is a deficient number, since it is larger than the sum of its proper divisors (35227176999).

64424509401 is a wasteful number, since it uses less digits than its factorization.

64424509401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93189.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 64424509401 in words is "sixty-four billion, four hundred twenty-four million, five hundred nine thousand, four hundred one".