69240771553 has 2 divisors, whose sum is σ = 69240771554. Its totient is φ = 69240771552.

The previous prime is 69240771373. The next prime is 69240771559. The reversal of 69240771553 is 35517704296.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42350347264 + 26890424289 = 205792^2 + 163983^2 .

It is a cyclic number.

It is not a de Polignac number, because 69240771553 - 2²⁹ = 68703900641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69240771497 and 69240771506.

It is not a weakly prime, because it can be changed into another prime (69240771559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34620385776 + 34620385777.

It is an arithmetic number, because the mean of its divisors is an integer number (34620385777).

Almost surely, 2^69240771553 is an apocalyptic number.

It is an amenable number.

69240771553 is a deficient number, since it is larger than the sum of its proper divisors (1).

69240771553 is an equidigital number, since it uses as much as digits as its factorization.

69240771553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 69240771553 in words is "sixty-nine billion, two hundred forty million, seven hundred seventy-one thousand, five hundred fifty-three".