79427081497 has 2 divisors, whose sum is σ = 79427081498. Its totient is φ = 79427081496.

The previous prime is 79427081467. The next prime is 79427081527. The reversal of 79427081497 is 79418072497.

It is a balanced prime because it is at equal distance from previous prime (79427081467) and next prime (79427081527).

It can be written as a sum of positive squares in only one way, i.e., 70984412041 + 8442669456 = 266429^2 + 91884^2 .

It is a cyclic number.

It is not a de Polignac number, because 79427081497 - 2³⁵ = 45067343129 is a prime.

It is a super-2 number, since 2×79427081497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79427081417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39713540748 + 39713540749.

It is an arithmetic number, because the mean of its divisors is an integer number (39713540749).

Almost surely, 2^79427081497 is an apocalyptic number.

It is an amenable number.

79427081497 is a deficient number, since it is larger than the sum of its proper divisors (1).

79427081497 is an equidigital number, since it uses as much as digits as its factorization.

79427081497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 79427081497 in words is "seventy-nine billion, four hundred twenty-seven million, eighty-one thousand, four hundred ninety-seven".