29998399379391 has 48 divisors (see below), whose sum is σ = 45033300000000. Its totient is φ = 19222074524160.

The previous prime is 29998399379371. The next prime is 29998399379393. The reversal of 29998399379391 is 19397399389992.

29998399379391 is a `hidden beast` number, since 2 + 99 + 98 + 39 + 9 + 379 + 39 + 1 = 666.

It is not a de Polignac number, because 29998399379391 - 2⁵ = 29998399379359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29998399379393) 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, 533286235 + ... + 533342483.

It is an arithmetic number, because the mean of its divisors is an integer number (938193750000).

Almost surely, 2^{29998399379391} is an apocalyptic number.

29998399379391 is a deficient number, since it is larger than the sum of its proper divisors (15034900620609).

29998399379391 is a wasteful number, since it uses less digits than its factorization.

29998399379391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69264 (or 69261 counting only the distinct ones).

The product of its digits is 14463698256, while the sum is 90.

The spelling of 29998399379391 in words is "twenty-nine trillion, nine hundred ninety-eight billion, three hundred ninety-nine million, three hundred seventy-nine thousand, three hundred ninety-one".