2436195981 has 4 divisors (see below), whose sum is σ = 3248261312. Its totient is φ = 1624130652.

The previous prime is 2436195959. The next prime is 2436195991. The reversal of 2436195981 is 1895916342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2436195981 - 2¹¹ = 2436193933 is a prime.

It is a super-2 number, since 2×2436195981² = 11870101715681104722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2436195981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2436195901) 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, 406032661 + ... + 406032666.

It is an arithmetic number, because the mean of its divisors is an integer number (812065328).

Almost surely, 2^2436195981 is an apocalyptic number.

It is an amenable number.

2436195981 is a deficient number, since it is larger than the sum of its proper divisors (812065331).

2436195981 is an equidigital number, since it uses as much as digits as its factorization.

2436195981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812065330.

The product of its digits is 466560, while the sum is 48.

The square root of 2436195981 is about 49357.8360648033. The cubic root of 2436195981 is about 1345.5631166552.

The spelling of 2436195981 in words is "two billion, four hundred thirty-six million, one hundred ninety-five thousand, nine hundred eighty-one".