64304140615 has 32 divisors (see below), whose sum is σ = 91111104000. Its totient is φ = 42952187520.

The previous prime is 64304140561. The next prime is 64304140643. The reversal of 64304140615 is 51604140346.

It is a de Polignac number, because none of the positive numbers 2^k-64304140615 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83685 + ... + 368254.

It is an arithmetic number, because the mean of its divisors is an integer number (2847222000).

Almost surely, 2^64304140615 is an apocalyptic number.

64304140615 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64304140615 is a deficient number, since it is larger than the sum of its proper divisors (26806963385).

64304140615 is a wasteful number, since it uses less digits than its factorization.

64304140615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452167.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 64304140615 in words is "sixty-four billion, three hundred four million, one hundred forty thousand, six hundred fifteen".