2091762564 has 24 divisors (see below), whose sum is σ = 4906073760. Its totient is φ = 693640704.

The previous prime is 2091762539. The next prime is 2091762599. The reversal of 2091762564 is 4652671902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449274 + ... + 453905.

It is an arithmetic number, because the mean of its divisors is an integer number (204419740).

Almost surely, 2^2091762564 is an apocalyptic number.

It is an amenable number.

2091762564 is an abundant number, since it is smaller than the sum of its proper divisors (2814311196).

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

2091762564 is a wasteful number, since it uses less digits than its factorization.

2091762564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903379 (or 903377 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2091762564 is about 45735.7908426213. The cubic root of 2091762564 is about 1278.9025758172.

The spelling of 2091762564 in words is "two billion, ninety-one million, seven hundred sixty-two thousand, five hundred sixty-four".