64497274935 has 36 divisors (see below), whose sum is σ = 107915335416. Its totient is φ = 32891416800.

The previous prime is 64497274901. The next prime is 64497274943. The reversal of 64497274935 is 53947279446.

It is not a de Polignac number, because 64497274935 - 2⁶ = 64497274871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22621260 + ... + 22624110.

It is an arithmetic number, because the mean of its divisors is an integer number (2997648206).

Almost surely, 2^64497274935 is an apocalyptic number.

64497274935 is a deficient number, since it is larger than the sum of its proper divisors (43418060481).

64497274935 is an frugal number, since it uses more digits than its factorization.

64497274935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756 (or 2882 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 60.

Multiplying 64497274935 by its sum of digits (60), we get a square (3869836496100 = 1967190²).

The spelling of 64497274935 in words is "sixty-four billion, four hundred ninety-seven million, two hundred seventy-four thousand, nine hundred thirty-five".