2774153664 has 56 divisors (see below), whose sum is σ = 8155503120. Its totient is φ = 924717312.

The previous prime is 2774153663. The next prime is 2774153741. The reversal of 2774153664 is 4663514772.

2774153664 is a `hidden beast` number, since 2 + 77 + 41 + 536 + 6 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774153663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800979 + ... + 804434.

Almost surely, 2^2774153664 is an apocalyptic number.

2774153664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2774153664 is an abundant number, since it is smaller than the sum of its proper divisors (5381349456).

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

2774153664 is a wasteful number, since it uses less digits than its factorization.

2774153664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605434 (or 1605418 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 2774153664 is about 52670.2350858623. The cubic root of 2774153664 is about 1405.1095035873.

The spelling of 2774153664 in words is "two billion, seven hundred seventy-four million, one hundred fifty-three thousand, six hundred sixty-four".