29129918818408 has 16 divisors (see below), whose sum is σ = 56993319427680. Its totient is φ = 13931700304368.

The previous prime is 29129918818387. The next prime is 29129918818411. The reversal of 29129918818408 is 80481881992192.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79157387910 + ... + 79157388277.

It is an arithmetic number, because the mean of its divisors is an integer number (3562082464230).

Almost surely, 2^{29129918818408} is an apocalyptic number.

It is an amenable number.

29129918818408 is a deficient number, since it is larger than the sum of its proper divisors (27863400609272).

29129918818408 is a wasteful number, since it uses less digits than its factorization.

29129918818408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158314776216 (or 158314776212 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 70.

The spelling of 29129918818408 in words is "twenty-nine trillion, one hundred twenty-nine billion, nine hundred eighteen million, eight hundred eighteen thousand, four hundred eight".