64853407992274 has 32 divisors (see below), whose sum is σ = 111526665218496. Its totient is φ = 28015071376320.

The previous prime is 64853407992259. The next prime is 64853407992281. The reversal of 64853407992274 is 47229970435846.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926389317 + ... + 926459320.

It is an arithmetic number, because the mean of its divisors is an integer number (3485208288078).

Almost surely, 2^{64853407992274} is an apocalyptic number.

64853407992274 is a deficient number, since it is larger than the sum of its proper divisors (46673257226222).

64853407992274 is a wasteful number, since it uses less digits than its factorization.

64853407992274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852848730.

The product of its (nonzero) digits is 731566080, while the sum is 70.

The spelling of 64853407992274 in words is "sixty-four trillion, eight hundred fifty-three billion, four hundred seven million, nine hundred ninety-two thousand, two hundred seventy-four".