2491796752 has 20 divisors (see below), whose sum is σ = 4852877020. Its totient is φ = 1239441408.

The previous prime is 2491796731. The next prime is 2491796753. The reversal of 2491796752 is 2576971942.

It can be written as a sum of positive squares in 2 ways, for example, as 865771776 + 1626024976 = 29424^2 + 40324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2491796752.

It is not an unprimeable number, because it can be changed into a prime (2491796753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400377 + ... + 406552.

It is an arithmetic number, because the mean of its divisors is an integer number (242643851).

Almost surely, 2^2491796752 is an apocalyptic number.

It is an amenable number.

2491796752 is a deficient number, since it is larger than the sum of its proper divisors (2361080268).

2491796752 is a wasteful number, since it uses less digits than its factorization.

2491796752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807130 (or 807124 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The square root of 2491796752 is about 49917.9001160906. The cubic root of 2491796752 is about 1355.7227122761.

The spelling of 2491796752 in words is "two billion, four hundred ninety-one million, seven hundred ninety-six thousand, seven hundred fifty-two".