2749774664 has 192 divisors, whose sum is σ = 6783004800. Its totient is φ = 1021483008.

The previous prime is 2749774649. The next prime is 2749774697. The reversal of 2749774664 is 4664779472.

2749774664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2749774664² = 15122521405552625792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11801492 + ... + 11801724.

It is an arithmetic number, because the mean of its divisors is an integer number (35328150).

Almost surely, 2^2749774664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749774664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3391502400).

2749774664 is an abundant number, since it is smaller than the sum of its proper divisors (4033230136).

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

2749774664 is a wasteful number, since it uses less digits than its factorization.

2749774664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 327 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 56.

The square root of 2749774664 is about 52438.2938700336. The cubic root of 2749774664 is about 1400.9813975955.

The spelling of 2749774664 in words is "two billion, seven hundred forty-nine million, seven hundred seventy-four thousand, six hundred sixty-four".