64090816194276 has 81 divisors (see below), whose sum is σ = 172099956273609. Its totient is φ = 20106666546048.

The previous prime is 64090816194233. The next prime is 64090816194281. The reversal of 64090816194276 is 67249161809046.

The square root of 64090816194276 is 8005674.

It is a perfect power (a square), and thus also a powerful number.

64090816194276 is a `hidden beast` number, since 6 + 4 + 0 + 9 + 0 + 8 + 1 + 619 + 4 + 2 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49897694268900 + 14193121925376 = 7063830^2 + 3767376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 816539505 + ... + 816617991.

Almost surely, 2^{64090816194276} is an apocalyptic number.

64090816194276 is the 8005674-th square number.

It is an amenable number.

64090816194276 is an abundant number, since it is smaller than the sum of its proper divisors (108009140079333).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64090816194276 is an frugal number, since it uses more digits than its factorization.

64090816194276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157018 (or 78509 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 64090816194276 in words is "sixty-four trillion, ninety billion, eight hundred sixteen million, one hundred ninety-four thousand, two hundred seventy-six".