2953903679921 has 2 divisors, whose sum is σ = 2953903679922. Its totient is φ = 2953903679920.

The previous prime is 2953903679893. The next prime is 2953903680001. The reversal of 2953903679921 is 1299763093592.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1624872837025 + 1329030842896 = 1274705^2 + 1152836^2 .

It is a cyclic number.

It is not a de Polignac number, because 2953903679921 - 2¹⁰ = 2953903678897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2953903679521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476951839960 + 1476951839961.

It is an arithmetic number, because the mean of its divisors is an integer number (1476951839961).

Almost surely, 2^{2953903679921} is an apocalyptic number.

It is an amenable number.

2953903679921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2953903679921 is an equidigital number, since it uses as much as digits as its factorization.

2953903679921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49601160, while the sum is 65.

The spelling of 2953903679921 in words is "two trillion, nine hundred fifty-three billion, nine hundred three million, six hundred seventy-nine thousand, nine hundred twenty-one".