2641957979 has 4 divisors (see below), whose sum is σ = 2652483960. Its totient is φ = 2631432000.

The previous prime is 2641957957. The next prime is 2641958063. The reversal of 2641957979 is 9797591462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9797591462 = 2 ⋅4898795731.

It is a cyclic number.

It is not a de Polignac number, because 2641957979 - 2⁸ = 2641957723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2641957379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5262614 + ... + 5263115.

It is an arithmetic number, because the mean of its divisors is an integer number (663120990).

Almost surely, 2^2641957979 is an apocalyptic number.

2641957979 is a deficient number, since it is larger than the sum of its proper divisors (10525981).

2641957979 is a wasteful number, since it uses less digits than its factorization.

2641957979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10525980.

The product of its digits is 8573040, while the sum is 59.

The square root of 2641957979 is about 51399.9803404632. The cubic root of 2641957979 is about 1382.4262399403.

The spelling of 2641957979 in words is "two billion, six hundred forty-one million, nine hundred fifty-seven thousand, nine hundred seventy-nine".