33840772051 has 4 divisors (see below), whose sum is σ = 33935036400. Its totient is φ = 33746507704.

The previous prime is 33840772019. The next prime is 33840772061. The reversal of 33840772051 is 15027704833.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15027704833 = 23 ⋅653378471.

It is a cyclic number.

It is not a de Polignac number, because 33840772051 - 2⁵ = 33840772019 is a prime.

It is a super-2 number, since 2×33840772051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33840771995 and 33840772013.

It is not an unprimeable number, because it can be changed into a prime (33840772061) 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, 47131636 + ... + 47132353.

It is an arithmetic number, because the mean of its divisors is an integer number (8483759100).

Almost surely, 2^33840772051 is an apocalyptic number.

33840772051 is a deficient number, since it is larger than the sum of its proper divisors (94264349).

33840772051 is an equidigital number, since it uses as much as digits as its factorization.

33840772051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94264348.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 33840772051 in words is "thirty-three billion, eight hundred forty million, seven hundred seventy-two thousand, fifty-one".