33980419902 has 64 divisors (see below), whose sum is σ = 79941012480. Its totient is φ = 9493238400.

The previous prime is 33980419897. The next prime is 33980419933. The reversal of 33980419902 is 20991408933.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 680299 + ... + 728537.

It is an arithmetic number, because the mean of its divisors is an integer number (1249078320).

Almost surely, 2^33980419902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33980419902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39970506240).

33980419902 is an abundant number, since it is smaller than the sum of its proper divisors (45960592578).

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

33980419902 is a wasteful number, since it uses less digits than its factorization.

33980419902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49089.

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 33980419902 in words is "thirty-three billion, nine hundred eighty million, four hundred nineteen thousand, nine hundred two".