64196754895 has 72 divisors (see below), whose sum is σ = 97985642976. Its totient is φ = 40237247232.

The previous prime is 64196754877. The next prime is 64196754901. The reversal of 64196754895 is 59845769146.

It is not a de Polignac number, because 64196754895 - 2³³ = 55606820303 is a prime.

It is a super-2 number, since 2×64196754895² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4257189 + ... + 4272241.

It is an arithmetic number, because the mean of its divisors is an integer number (1360911708).

Almost surely, 2^64196754895 is an apocalyptic number.

64196754895 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64196754895 is a deficient number, since it is larger than the sum of its proper divisors (33788888081).

64196754895 is a wasteful number, since it uses less digits than its factorization.

64196754895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15201 (or 15181 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 64.

The spelling of 64196754895 in words is "sixty-four billion, one hundred ninety-six million, seven hundred fifty-four thousand, eight hundred ninety-five".