2497181979 has 16 divisors (see below), whose sum is σ = 3357016064. Its totient is φ = 1651104000.

The previous prime is 2497181977. The next prime is 2497181983. The reversal of 2497181979 is 9791817942.

It is not a de Polignac number, because 2497181979 - 2¹ = 2497181977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2497181971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300774 + ... + 308964.

It is an arithmetic number, because the mean of its divisors is an integer number (209813504).

Almost surely, 2^2497181979 is an apocalyptic number.

2497181979 is a deficient number, since it is larger than the sum of its proper divisors (859834085).

2497181979 is a wasteful number, since it uses less digits than its factorization.

2497181979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018.

The product of its digits is 2286144, while the sum is 57.

The square root of 2497181979 is about 49971.8118442788. The cubic root of 2497181979 is about 1356.6986641801.

The spelling of 2497181979 in words is "two billion, four hundred ninety-seven million, one hundred eighty-one thousand, nine hundred seventy-nine".