33979115491 has 8 divisors (see below), whose sum is σ = 34251641424. Its totient is φ = 33706788960.

The previous prime is 33979115477. The next prime is 33979115509. The reversal of 33979115491 is 19451197933.

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 33979115491 - 2¹³ = 33979107299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33979115431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 302241 + ... + 399133.

It is an arithmetic number, because the mean of its divisors is an integer number (4281455178).

Almost surely, 2^33979115491 is an apocalyptic number.

33979115491 is a deficient number, since it is larger than the sum of its proper divisors (272525933).

33979115491 is a wasteful number, since it uses less digits than its factorization.

33979115491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99701.

The product of its digits is 918540, while the sum is 52.

The spelling of 33979115491 in words is "thirty-three billion, nine hundred seventy-nine million, one hundred fifteen thousand, four hundred ninety-one".