29158512938 has 4 divisors (see below), whose sum is σ = 43737769410. Its totient is φ = 14579256468.

The previous prime is 29158512899. The next prime is 29158512941. The reversal of 29158512938 is 83921585192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22821238489 + 6337274449 = 151067^2 + 79607^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 29158512938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7289628233 + ... + 7289628236.

Almost surely, 2^29158512938 is an apocalyptic number.

29158512938 is a deficient number, since it is larger than the sum of its proper divisors (14579256472).

29158512938 is a wasteful number, since it uses less digits than its factorization.

29158512938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14579256471.

The product of its digits is 1555200, while the sum is 53.

The spelling of 29158512938 in words is "twenty-nine billion, one hundred fifty-eight million, five hundred twelve thousand, nine hundred thirty-eight".