33740964491 has 4 divisors (see below), whose sum is σ = 36336423312. Its totient is φ = 31145505672.

The previous prime is 33740964461. The next prime is 33740964539. The reversal of 33740964491 is 19446904733.

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

It is a cyclic number.

It is not a de Polignac number, because 33740964491 - 2²⁶ = 33673855627 is a prime.

It is a super-2 number, since 2×33740964491² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33740964431) 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 3 ways as a sum of consecutive naturals, for example, 1297729391 + ... + 1297729416.

It is an arithmetic number, because the mean of its divisors is an integer number (9084105828).

Almost surely, 2^33740964491 is an apocalyptic number.

33740964491 is a deficient number, since it is larger than the sum of its proper divisors (2595458821).

33740964491 is a wasteful number, since it uses less digits than its factorization.

33740964491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595458820.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 33740964491 in words is "thirty-three billion, seven hundred forty million, nine hundred sixty-four thousand, four hundred ninety-one".