29978413794591 has 8 divisors (see below), whose sum is σ = 41709097453440. Its totient is φ = 19116669666072.

The previous prime is 29978413794583. The next prime is 29978413794613. The reversal of 29978413794591 is 19549731487992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29978413794591 - 2³ = 29978413794583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29978413794521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217234882501 + ... + 217234882638.

It is an arithmetic number, because the mean of its divisors is an integer number (5213637181680).

Almost surely, 2^{29978413794591} is an apocalyptic number.

29978413794591 is a deficient number, since it is larger than the sum of its proper divisors (11730683658849).

29978413794591 is a wasteful number, since it uses less digits than its factorization.

29978413794591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434469765165.

The product of its digits is 1234517760, while the sum is 78.

The spelling of 29978413794591 in words is "twenty-nine trillion, nine hundred seventy-eight billion, four hundred thirteen million, seven hundred ninety-four thousand, five hundred ninety-one".