2049764880 has 80 divisors (see below), whose sum is σ = 6360485760. Its totient is φ = 546069504.

The previous prime is 2049764869. The next prime is 2049764891. The reversal of 2049764880 is 884679402.

It is an interprime number because it is at equal distance from previous prime (2049764869) and next prime (2049764891).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 282741 + ... + 289899.

It is an arithmetic number, because the mean of its divisors is an integer number (79506072).

Almost surely, 2^2049764880 is an apocalyptic number.

2049764880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2049764880 is an abundant number, since it is smaller than the sum of its proper divisors (4310720880).

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

2049764880 is a wasteful number, since it uses less digits than its factorization.

2049764880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368 (or 8362 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 2049764880 is about 45274.3291501928. The cubic root of 2049764880 is about 1270.2855249072.

The spelling of 2049764880 in words is "two billion, forty-nine million, seven hundred sixty-four thousand, eight hundred eighty".