33887720980 has 48 divisors (see below), whose sum is σ = 74451073536. Its totient is φ = 12943089920.

The previous prime is 33887720917. The next prime is 33887721031. The reversal of 33887720980 is 8902778833.

It is a super-2 number, since 2×33887720980² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401104 + ... + 478183.

It is an arithmetic number, because the mean of its divisors is an integer number (1551064032).

Almost surely, 2^33887720980 is an apocalyptic number.

It is an amenable number.

33887720980 is an abundant number, since it is smaller than the sum of its proper divisors (40563352556).

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

33887720980 is a wasteful number, since it uses less digits than its factorization.

33887720980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879384 (or 879382 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 33887720980 in words is "thirty-three billion, eight hundred eighty-seven million, seven hundred twenty thousand, nine hundred eighty".