29557690397793 has 6 divisors (see below), whose sum is σ = 42694441685714. Its totient is φ = 19705126931856.

The previous prime is 29557690397789. The next prime is 29557690397797. The reversal of 29557690397793 is 39779309675592.

29557690397793 is a `hidden beast` number, since 2 + 9 + 5 + 5 + 76 + 90 + 397 + 79 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (29557690397789) and next prime (29557690397797).

It can be written as a sum of positive squares in only one way, i.e., 15158306596689 + 14399383801104 = 3893367^2 + 3794652^2 .

It is not a de Polignac number, because 29557690397793 - 2² = 29557690397789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29557690397797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1642093910980 + ... + 1642093910997.

Almost surely, 2^{29557690397793} is an apocalyptic number.

It is an amenable number.

29557690397793 is a deficient number, since it is larger than the sum of its proper divisors (13136751287921).

29557690397793 is a wasteful number, since it uses less digits than its factorization.

29557690397793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284187821983 (or 3284187821980 counting only the distinct ones).

The product of its (nonzero) digits is 6076142100, while the sum is 81.

The spelling of 29557690397793 in words is "twenty-nine trillion, five hundred fifty-seven billion, six hundred ninety million, three hundred ninety-seven thousand, seven hundred ninety-three".