2921360639 has 2 divisors, whose sum is σ = 2921360640. Its totient is φ = 2921360638.

The previous prime is 2921360591. The next prime is 2921360707. The reversal of 2921360639 is 9360631292.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2921360639 - 2¹⁶ = 2921295103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2921360596 and 2921360605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2921320639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460680319 + 1460680320.

It is an arithmetic number, because the mean of its divisors is an integer number (1460680320).

Almost surely, 2^2921360639 is an apocalyptic number.

2921360639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2921360639 is an equidigital number, since it uses as much as digits as its factorization.

2921360639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 2921360639 is about 54049.6127553195. The cubic root of 2921360639 is about 1429.5358721651.

The spelling of 2921360639 in words is "two billion, nine hundred twenty-one million, three hundred sixty thousand, six hundred thirty-nine".