2651364302621 has 2 divisors, whose sum is σ = 2651364302622. Its totient is φ = 2651364302620.

The previous prime is 2651364302551. The next prime is 2651364302669. The reversal of 2651364302621 is 1262034631562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2522106076996 + 129258225625 = 1588114^2 + 359525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2651364302621 - 2³⁴ = 2634184433437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2651364304621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325682151310 + 1325682151311.

It is an arithmetic number, because the mean of its divisors is an integer number (1325682151311).

Almost surely, 2^{2651364302621} is an apocalyptic number.

It is an amenable number.

2651364302621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651364302621 is an equidigital number, since it uses as much as digits as its factorization.

2651364302621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 2651364302621 in words is "two trillion, six hundred fifty-one billion, three hundred sixty-four million, three hundred two thousand, six hundred twenty-one".