29997928910870 has 64 divisors (see below), whose sum is σ = 57083307240960. Its totient is φ = 11318626368000.

The previous prime is 29997928910821. The next prime is 29997928910893. The reversal of 29997928910870 is 7801982979992.

It is a super-2 number, since 2×29997928910870² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299920289 + ... + 300020291.

It is an arithmetic number, because the mean of its divisors is an integer number (891926675640).

Almost surely, 2^{29997928910870} is an apocalyptic number.

29997928910870 is a deficient number, since it is larger than the sum of its proper divisors (27085378330090).

29997928910870 is a wasteful number, since it uses less digits than its factorization.

29997928910870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106821.

The product of its (nonzero) digits is 740710656, while the sum is 80.

The spelling of 29997928910870 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-eight million, nine hundred ten thousand, eight hundred seventy".