29855985958 has 16 divisors (see below), whose sum is σ = 49190641920. Its totient is φ = 13527425736.

The previous prime is 29855985883. The next prime is 29855985961. The reversal of 29855985958 is 85958955892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17079210 + ... + 17080957.

It is an arithmetic number, because the mean of its divisors is an integer number (3074415120).

Almost surely, 2^29855985958 is an apocalyptic number.

29855985958 is a deficient number, since it is larger than the sum of its proper divisors (19334655962).

29855985958 is a wasteful number, since it uses less digits than its factorization.

29855985958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34160211.

The product of its digits is 466560000, while the sum is 73.

The spelling of 29855985958 in words is "twenty-nine billion, eight hundred fifty-five million, nine hundred eighty-five thousand, nine hundred fifty-eight".