64321793835 has 32 divisors (see below), whose sum is σ = 113189529600. Its totient is φ = 30992362368.

The previous prime is 64321793831. The next prime is 64321793891. The reversal of 64321793835 is 53839712346.

It is not a de Polignac number, because 64321793835 - 2² = 64321793831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64321793831) 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, 3499935 + ... + 3518264.

It is an arithmetic number, because the mean of its divisors is an integer number (3537172800).

Almost surely, 2^64321793835 is an apocalyptic number.

64321793835 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64321793835 is a deficient number, since it is larger than the sum of its proper divisors (48867735765).

64321793835 is a wasteful number, since it uses less digits than its factorization.

64321793835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018267.

The product of its digits is 3265920, while the sum is 51.

The spelling of 64321793835 in words is "sixty-four billion, three hundred twenty-one million, seven hundred ninety-three thousand, eight hundred thirty-five".