2976542981 has 4 divisors (see below), whose sum is σ = 2977323372. Its totient is φ = 2975762592.

The previous prime is 2976542963. The next prime is 2976542993. The reversal of 2976542981 is 1892456792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 402604225 + 2573938756 = 20065^2 + 50734^2 .

It is a cyclic number.

It is not a de Polignac number, because 2976542981 - 2⁶ = 2976542917 is a prime.

It is a super-2 number, since 2×2976542981² = 17719616235480732722, 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 (2976542951) 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, 384446 + ... + 392111.

It is an arithmetic number, because the mean of its divisors is an integer number (744330843).

Almost surely, 2^2976542981 is an apocalyptic number.

It is an amenable number.

2976542981 is a deficient number, since it is larger than the sum of its proper divisors (780391).

2976542981 is an equidigital number, since it uses as much as digits as its factorization.

2976542981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780390.

The product of its digits is 2177280, while the sum is 53.

The square root of 2976542981 is about 54557.7032232846. The cubic root of 2976542981 is about 1438.4807441727.

The spelling of 2976542981 in words is "two billion, nine hundred seventy-six million, five hundred forty-two thousand, nine hundred eighty-one".