29997974137382 has 4 divisors (see below), whose sum is σ = 44996961206076. Its totient is φ = 14998987068690.

The previous prime is 29997974137357. The next prime is 29997974137429. The reversal of 29997974137382 is 28373147979992.

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

It is a junction number, because it is equal to n+sod(n) for n = 29997974137297 and 29997974137306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7499493534344 + ... + 7499493534347.

It is an arithmetic number, because the mean of its divisors is an integer number (11249240301519).

Almost surely, 2^{29997974137382} is an apocalyptic number.

29997974137382 is a deficient number, since it is larger than the sum of its proper divisors (14998987068694).

29997974137382 is a wasteful number, since it uses less digits than its factorization.

29997974137382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14998987068693.

The product of its digits is 2592487296, while the sum is 80.

The spelling of 29997974137382 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, one hundred thirty-seven thousand, three hundred eighty-two".