29749947798386 has 8 divisors (see below), whose sum is σ = 45019832509404. Its totient is φ = 14743336961920.

The previous prime is 29749947798371. The next prime is 29749947798397. The reversal of 29749947798386 is 68389774994792.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29654766293161 + 95181505225 = 5445619^2 + 308515^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 29749947798295 and 29749947798304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65818468355 + ... + 65818468806.

Almost surely, 2^{29749947798386} is an apocalyptic number.

29749947798386 is a deficient number, since it is larger than the sum of its proper divisors (15269884711018).

29749947798386 is a wasteful number, since it uses less digits than its factorization.

29749947798386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131636937276.

The product of its digits is 82959593472, while the sum is 92.

The spelling of 29749947798386 in words is "twenty-nine trillion, seven hundred forty-nine billion, nine hundred forty-seven million, seven hundred ninety-eight thousand, three hundred eighty-six".