80628920653 has 2 divisors, whose sum is σ = 80628920654. Its totient is φ = 80628920652.

The previous prime is 80628920633. The next prime is 80628920663. The reversal of 80628920653 is 35602982608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51076904004 + 29552016649 = 226002^2 + 171907^2 .

It is a cyclic number.

It is not a de Polignac number, because 80628920653 - 2⁵ = 80628920621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80628920597 and 80628920606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80628920633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40314460326 + 40314460327.

It is an arithmetic number, because the mean of its divisors is an integer number (40314460327).

Almost surely, 2^80628920653 is an apocalyptic number.

It is an amenable number.

80628920653 is a deficient number, since it is larger than the sum of its proper divisors (1).

80628920653 is an equidigital number, since it uses as much as digits as its factorization.

80628920653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 80628920653 in words is "eighty billion, six hundred twenty-eight million, nine hundred twenty thousand, six hundred fifty-three".