80657379653 has 2 divisors, whose sum is σ = 80657379654. Its totient is φ = 80657379652.

The previous prime is 80657379577. The next prime is 80657379701. The reversal of 80657379653 is 35697375608.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47107229764 + 33550149889 = 217042^2 + 183167^2 .

It is a cyclic number.

It is not a de Polignac number, because 80657379653 - 2¹⁶ = 80657314117 is a prime.

It is a super-2 number, since 2×80657379653² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80657379592 and 80657379601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80657378653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40328689826 + 40328689827.

It is an arithmetic number, because the mean of its divisors is an integer number (40328689827).

Almost surely, 2^80657379653 is an apocalyptic number.

It is an amenable number.

80657379653 is a deficient number, since it is larger than the sum of its proper divisors (1).

80657379653 is an equidigital number, since it uses as much as digits as its factorization.

80657379653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28576800, while the sum is 59.

The spelling of 80657379653 in words is "eighty billion, six hundred fifty-seven million, three hundred seventy-nine thousand, six hundred fifty-three".