69561987297 has 12 divisors (see below), whose sum is σ = 101947596240. Its totient is φ = 42158779960.

The previous prime is 69561987283. The next prime is 69561987329. The reversal of 69561987297 is 79278916596.

It is not a de Polignac number, because 69561987297 - 2⁷ = 69561987169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69561988297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95815047 + ... + 95815772.

It is an arithmetic number, because the mean of its divisors is an integer number (8495633020).

Almost surely, 2^69561987297 is an apocalyptic number.

It is an amenable number.

69561987297 is a deficient number, since it is larger than the sum of its proper divisors (32385608943).

69561987297 is a wasteful number, since it uses less digits than its factorization.

69561987297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191630844 (or 191630833 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 69.

The spelling of 69561987297 in words is "sixty-nine billion, five hundred sixty-one million, nine hundred eighty-seven thousand, two hundred ninety-seven".