2790723664 has 80 divisors (see below), whose sum is σ = 5741854720. Its totient is φ = 1312122240.

The previous prime is 2790723647. The next prime is 2790723721. The reversal of 2790723664 is 4663270972.

It is a congruent number.

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, 2624797 + ... + 2625859.

It is an arithmetic number, because the mean of its divisors is an integer number (71773184).

Almost surely, 2^2790723664 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 2790723664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2870927360).

2790723664 is an abundant number, since it is smaller than the sum of its proper divisors (2951131056).

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

2790723664 is a wasteful number, since it uses less digits than its factorization.

2790723664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 46.

The square root of 2790723664 is about 52827.3003663825. The cubic root of 2790723664 is about 1407.9015217152.

The spelling of 2790723664 in words is "two billion, seven hundred ninety million, seven hundred twenty-three thousand, six hundred sixty-four".