29990050858 has 8 divisors (see below), whose sum is σ = 45722536740. Its totient is φ = 14749205280.

The previous prime is 29990050847. The next prime is 29990050861. The reversal of 29990050858 is 85805009992.

It can be written as a sum of positive squares in 2 ways, for example, as 29451021769 + 539029089 = 171613^2 + 23217^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 29990050799 and 29990050808.

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, 122909923 + ... + 122910166.

Almost surely, 2^29990050858 is an apocalyptic number.

29990050858 is a deficient number, since it is larger than the sum of its proper divisors (15732485882).

29990050858 is a wasteful number, since it uses less digits than its factorization.

29990050858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245820152.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 29990050858 in words is "twenty-nine billion, nine hundred ninety million, fifty thousand, eight hundred fifty-eight".