2544292981 has 16 divisors (see below), whose sum is σ = 2759823360. Its totient is φ = 2336705280.

The previous prime is 2544292979. The next prime is 2544292987. The reversal of 2544292981 is 1892924452.

It is a cyclic number.

It is not a de Polignac number, because 2544292981 - 2¹ = 2544292979 is a prime.

It is a super-2 number, since 2×2544292981² = 12946853546331732722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544292987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122040 + ... + 141358.

It is an arithmetic number, because the mean of its divisors is an integer number (172488960).

Almost surely, 2^2544292981 is an apocalyptic number.

It is an amenable number.

2544292981 is a deficient number, since it is larger than the sum of its proper divisors (215530379).

2544292981 is a wasteful number, since it uses less digits than its factorization.

2544292981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19524.

The product of its digits is 414720, while the sum is 46.

The square root of 2544292981 is about 50440.9851311411. The cubic root of 2544292981 is about 1365.1772423890.

The spelling of 2544292981 in words is "two billion, five hundred forty-four million, two hundred ninety-two thousand, nine hundred eighty-one".