33077420865 has 48 divisors (see below), whose sum is σ = 57551622336. Its totient is φ = 17574537600.

The previous prime is 33077420833. The next prime is 33077420899. The reversal of 33077420865 is 56802477033.

It is not a de Polignac number, because 33077420865 - 2⁵ = 33077420833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 33077420865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20404755 + ... + 20406375.

It is an arithmetic number, because the mean of its divisors is an integer number (1198992132).

Almost surely, 2^33077420865 is an apocalyptic number.

It is an amenable number.

33077420865 is a deficient number, since it is larger than the sum of its proper divisors (24474201471).

33077420865 is a wasteful number, since it uses less digits than its factorization.

33077420865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

Adding to 33077420865 its reverse (56802477033), we get a palindrome (89879897898).

The spelling of 33077420865 in words is "thirty-three billion, seventy-seven million, four hundred twenty thousand, eight hundred sixty-five".