69686939949561 has 24 divisors (see below), whose sum is σ = 109810921315680. Its totient is φ = 42234048384000.

The previous prime is 69686939949533. The next prime is 69686939949587. The reversal of 69686939949561 is 16594993968696.

69686939949561 is a `hidden beast` number, since 6 + 9 + 6 + 8 + 6 + 9 + 39 + 9 + 4 + 9 + 561 = 666.

It is not a de Polignac number, because 69686939949561 - 2¹⁰ = 69686939948537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69686939945561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5394730 + ... + 12979868.

It is an arithmetic number, because the mean of its divisors is an integer number (4575455054820).

Almost surely, 2^{69686939949561} is an apocalyptic number.

It is an amenable number.

69686939949561 is a deficient number, since it is larger than the sum of its proper divisors (40123981366119).

69686939949561 is a wasteful number, since it uses less digits than its factorization.

69686939949561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677957 (or 7677954 counting only the distinct ones).

The product of its digits is 36733201920, while the sum is 90.

The spelling of 69686939949561 in words is "sixty-nine trillion, six hundred eighty-six billion, nine hundred thirty-nine million, nine hundred forty-nine thousand, five hundred sixty-one".