29161051893 has 16 divisors (see below), whose sum is σ = 43212672640. Its totient is φ = 19435699872.

The previous prime is 29161051889. The next prime is 29161051937. The reversal of 29161051893 is 39815016192.

29161051893 is a `hidden beast` number, since 29 + 1 + 610 + 5 + 1 + 8 + 9 + 3 = 666.

It is not a de Polignac number, because 29161051893 - 2² = 29161051889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29161051393) 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, 30496 + ... + 243417.

It is an arithmetic number, because the mean of its divisors is an integer number (2700792040).

Almost surely, 2^29161051893 is an apocalyptic number.

It is an amenable number.

29161051893 is a deficient number, since it is larger than the sum of its proper divisors (14051620747).

29161051893 is a wasteful number, since it uses less digits than its factorization.

29161051893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277865 (or 277859 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 29161051893 in words is "twenty-nine billion, one hundred sixty-one million, fifty-one thousand, eight hundred ninety-three".