69542972677 has 2 divisors, whose sum is σ = 69542972678. Its totient is φ = 69542972676.

The previous prime is 69542972623. The next prime is 69542972729. The reversal of 69542972677 is 77627924596.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63061756641 + 6481216036 = 251121^2 + 80506^2 .

It is a cyclic number.

It is not a de Polignac number, because 69542972677 - 2⁷ = 69542972549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69542972077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34771486338 + 34771486339.

It is an arithmetic number, because the mean of its divisors is an integer number (34771486339).

Almost surely, 2^69542972677 is an apocalyptic number.

It is an amenable number.

69542972677 is a deficient number, since it is larger than the sum of its proper divisors (1).

69542972677 is an equidigital number, since it uses as much as digits as its factorization.

69542972677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80015040, while the sum is 64.

The spelling of 69542972677 in words is "sixty-nine billion, five hundred forty-two million, nine hundred seventy-two thousand, six hundred seventy-seven".