29668794813 has 48 divisors (see below), whose sum is σ = 49396838400. Its totient is φ = 16808631840.

The previous prime is 29668794809. The next prime is 29668794833. The reversal of 29668794813 is 31849786692.

29668794813 is a `hidden beast` number, since 2 + 96 + 68 + 7 + 9 + 481 + 3 = 666.

It is not a de Polignac number, because 29668794813 - 2² = 29668794809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29668794833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7975768 + ... + 7979486.

It is an arithmetic number, because the mean of its divisors is an integer number (1029100800).

Almost surely, 2^29668794813 is an apocalyptic number.

It is an amenable number.

29668794813 is a deficient number, since it is larger than the sum of its proper divisors (19728043587).

29668794813 is a wasteful number, since it uses less digits than its factorization.

29668794813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782 (or 4779 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 29668794813 in words is "twenty-nine billion, six hundred sixty-eight million, seven hundred ninety-four thousand, eight hundred thirteen".