64693413801 has 45 divisors (see below), whose sum is σ = 98512181581. Its totient is φ = 42309430056.

The previous prime is 64693413679. The next prime is 64693413859. The reversal of 64693413801 is 10831439646.

The square root of 64693413801 is 254349.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 64693413801 - 2²³ = 64685025193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64693413881) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 135059080 + ... + 135059558.

Almost surely, 2^64693413801 is an apocalyptic number.

64693413801 is the 254349-th square number.

64693413801 is the 127175-th centered octagonal number.

It is an amenable number.

64693413801 is a deficient number, since it is larger than the sum of its proper divisors (33818767780).

64693413801 is an frugal number, since it uses more digits than its factorization.

64693413801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 64693413801 in words is "sixty-four billion, six hundred ninety-three million, four hundred thirteen thousand, eight hundred one".