2494736981 has 12 divisors (see below), whose sum is σ = 2743524000. Its totient is φ = 2266805640.

The previous prime is 2494736957. The next prime is 2494736999. The reversal of 2494736981 is 1896374942.

It is not a de Polignac number, because 2494736981 - 2¹⁸ = 2494474837 is a prime.

It is a super-2 number, since 2×2494736981² = 12447425208737988722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2494736911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322760 + ... + 330398.

It is an arithmetic number, because the mean of its divisors is an integer number (228627000).

Almost surely, 2^2494736981 is an apocalyptic number.

It is an amenable number.

2494736981 is a deficient number, since it is larger than the sum of its proper divisors (248787019).

2494736981 is a wasteful number, since it uses less digits than its factorization.

2494736981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360 (or 10349 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 2494736981 is about 49947.3420814361. The cubic root of 2494736981 is about 1356.2557370806.

The spelling of 2494736981 in words is "two billion, four hundred ninety-four million, seven hundred thirty-six thousand, nine hundred eighty-one".