29970181947942 has 12 divisors (see below), whose sum is σ = 64935394220580. Its totient is φ = 9990060649308.

The previous prime is 29970181947877. The next prime is 29970181947971. The reversal of 29970181947942 is 24974918107992.

29970181947942 is a `hidden beast` number, since 2 + 9 + 9 + 70 + 1 + 81 + 9 + 479 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 832505054092 + ... + 832505054127.

It is an arithmetic number, because the mean of its divisors is an integer number (5411282851715).

Almost surely, 2^{29970181947942} is an apocalyptic number.

29970181947942 is an abundant number, since it is smaller than the sum of its proper divisors (34965212272638).

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

29970181947942 is a wasteful number, since it uses less digits than its factorization.

29970181947942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665010108227 (or 1665010108224 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 72.

The spelling of 29970181947942 in words is "twenty-nine trillion, nine hundred seventy billion, one hundred eighty-one million, nine hundred forty-seven thousand, nine hundred forty-two".