33273778000 has 160 divisors (see below), whose sum is σ = 84258749952. Its totient is φ = 12684672000.

The previous prime is 33273777997. The next prime is 33273778019. The reversal of 33273778000 is 87737233.

It is a super-2 number, since 2×33273778000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14396845 + ... + 14399155.

Almost surely, 2^33273778000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33273778000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42129374976).

33273778000 is an abundant number, since it is smaller than the sum of its proper divisors (50984971952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33273778000 is a wasteful number, since it uses less digits than its factorization.

33273778000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670 (or 2654 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 40.

The spelling of 33273778000 in words is "thirty-three billion, two hundred seventy-three million, seven hundred seventy-eight thousand".