29997928349377 has 8 divisors (see below), whose sum is σ = 30037816463400. Its totient is φ = 29958060351744.

The previous prime is 29997928349329. The next prime is 29997928349381. The reversal of 29997928349377 is 77394382979992.

It can be written as a sum of positive squares in 4 ways, for example, as 6730724564496 + 23267203784881 = 2594364^2 + 4823609^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 29997928349377 - 2¹¹ = 29997928347329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29997928349317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043502 + ... + 8010727.

It is an arithmetic number, because the mean of its divisors is an integer number (3754727057925).

Almost surely, 2^{29997928349377} is an apocalyptic number.

It is an amenable number.

29997928349377 is a deficient number, since it is larger than the sum of its proper divisors (39888114023).

29997928349377 is a wasteful number, since it uses less digits than its factorization.

29997928349377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10058195.

The product of its digits is 23332385664, while the sum is 88.

The spelling of 29997928349377 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-eight million, three hundred forty-nine thousand, three hundred seventy-seven".