69901664926897 has 16 divisors (see below), whose sum is σ = 72699743083968. Its totient is φ = 67163941313280.

The previous prime is 69901664926871. The next prime is 69901664926909. The reversal of 69901664926897 is 79862946610996.

It is a cyclic number.

It is not a de Polignac number, because 69901664926897 - 2¹¹ = 69901664924849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69901664926897.

It is not an unprimeable number, because it can be changed into a prime (69901664926097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41198004 + ... + 42861157.

It is an arithmetic number, because the mean of its divisors is an integer number (4543733942748).

Almost surely, 2^{69901664926897} is an apocalyptic number.

It is an amenable number.

69901664926897 is a deficient number, since it is larger than the sum of its proper divisors (2798078157071).

69901664926897 is a wasteful number, since it uses less digits than its factorization.

69901664926897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84059520.

The product of its (nonzero) digits is 3809369088, while the sum is 82.

The spelling of 69901664926897 in words is "sixty-nine trillion, nine hundred one billion, six hundred sixty-four million, nine hundred twenty-six thousand, eight hundred ninety-seven".