29997985542434 has 32 divisors (see below), whose sum is σ = 56288779954176. Its totient is φ = 11672788461120.

The previous prime is 29997985542377. The next prime is 29997985542449. The reversal of 29997985542434 is 43424558979992.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351006082 + ... + 1351028285.

It is an arithmetic number, because the mean of its divisors is an integer number (1759024373568).

Almost surely, 2^{29997985542434} is an apocalyptic number.

29997985542434 is a deficient number, since it is larger than the sum of its proper divisors (26290794411742).

29997985542434 is a wasteful number, since it uses less digits than its factorization.

29997985542434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702034450.

The product of its digits is 7054387200, while the sum is 80.

The spelling of 29997985542434 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred eighty-five million, five hundred forty-two thousand, four hundred thirty-four".