2942721631 has 2 divisors, whose sum is σ = 2942721632. Its totient is φ = 2942721630.

The previous prime is 2942721619. The next prime is 2942721643. The reversal of 2942721631 is 1361272492.

It is a balanced prime because it is at equal distance from previous prime (2942721619) and next prime (2942721643).

It is a cyclic number.

It is not a de Polignac number, because 2942721631 - 2¹⁵ = 2942688863 is a prime.

It is a super-2 number, since 2×2942721631² = 17319221195110600322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2942721671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471360815 + 1471360816.

It is an arithmetic number, because the mean of its divisors is an integer number (1471360816).

Almost surely, 2^2942721631 is an apocalyptic number.

2942721631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2942721631 is an equidigital number, since it uses as much as digits as its factorization.

2942721631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 2942721631 is about 54246.8582592577. The cubic root of 2942721631 is about 1433.0116701241.

The spelling of 2942721631 in words is "two billion, nine hundred forty-two million, seven hundred twenty-one thousand, six hundred thirty-one".