69487669553 has 2 divisors, whose sum is σ = 69487669554. Its totient is φ = 69487669552.

The previous prime is 69487669501. The next prime is 69487669567. The reversal of 69487669553 is 35596678496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49327077409 + 20160592144 = 222097^2 + 141988^2 .

It is a cyclic number.

It is not a de Polignac number, because 69487669553 - 2²⁰ = 69486620977 is a prime.

It is not a weakly prime, because it can be changed into another prime (69487669583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34743834776 + 34743834777.

It is an arithmetic number, because the mean of its divisors is an integer number (34743834777).

Almost surely, 2^69487669553 is an apocalyptic number.

It is an amenable number.

69487669553 is a deficient number, since it is larger than the sum of its proper divisors (1).

69487669553 is an equidigital number, since it uses as much as digits as its factorization.

69487669553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 293932800, while the sum is 68.

The spelling of 69487669553 in words is "sixty-nine billion, four hundred eighty-seven million, six hundred sixty-nine thousand, five hundred fifty-three".