29971192158 has 40 divisors (see below), whose sum is σ = 67445986608. Its totient is φ = 9947507616.

The previous prime is 29971192129. The next prime is 29971192171. The reversal of 29971192158 is 85129117992.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 359266 + ... + 434757.

Almost surely, 2^29971192158 is an apocalyptic number.

29971192158 is an abundant number, since it is smaller than the sum of its proper divisors (37474794450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29971192158 is a wasteful number, since it uses less digits than its factorization.

29971192158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794270 (or 794261 counting only the distinct ones).

The product of its digits is 816480, while the sum is 54.

The spelling of 29971192158 in words is "twenty-nine billion, nine hundred seventy-one million, one hundred ninety-two thousand, one hundred fifty-eight".