29997928349380 has 12 divisors (see below), whose sum is σ = 62995649533740. Its totient is φ = 11999171339744.

The previous prime is 29997928349329. The next prime is 29997928349381. The reversal of 29997928349380 is 8394382979992.

It can be written as a sum of positive squares in 2 ways, for example, as 23363553619396 + 6634374729984 = 4833586^2 + 2575728^2 .

It is a junction number, because it is equal to n+sod(n) for n = 29997928349294 and 29997928349303.

It is not an unprimeable number, because it can be changed into a prime (29997928349381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749948208715 + ... + 749948208754.

It is an arithmetic number, because the mean of its divisors is an integer number (5249637461145).

Almost surely, 2^{29997928349380} is an apocalyptic number.

29997928349380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29997928349380 is an abundant number, since it is smaller than the sum of its proper divisors (32997721184360).

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

29997928349380 is a wasteful number, since it uses less digits than its factorization.

29997928349380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499896417478 (or 1499896417476 counting only the distinct ones).

The product of its (nonzero) digits is 3809369088, while the sum is 82.

The spelling of 29997928349380 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred twenty-eight million, three hundred forty-nine thousand, three hundred eighty".