2659471926961 has 2 divisors, whose sum is σ = 2659471926962. Its totient is φ = 2659471926960.

The previous prime is 2659471926941. The next prime is 2659471926973. The reversal of 2659471926961 is 1696291749562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2482688679025 + 176783247936 = 1575655^2 + 420456^2 .

It is a cyclic number.

It is not a de Polignac number, because 2659471926961 - 2⁵ = 2659471926929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2659471926911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329735963480 + 1329735963481.

It is an arithmetic number, because the mean of its divisors is an integer number (1329735963481).

Almost surely, 2^{2659471926961} is an apocalyptic number.

It is an amenable number.

2659471926961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2659471926961 is an equidigital number, since it uses as much as digits as its factorization.

2659471926961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88179840, while the sum is 67.

The spelling of 2659471926961 in words is "two trillion, six hundred fifty-nine billion, four hundred seventy-one million, nine hundred twenty-six thousand, nine hundred sixty-one".