33620128976780 has 12 divisors (see below), whose sum is σ = 70602270851280. Its totient is φ = 13448051590704.

The previous prime is 33620128976779. The next prime is 33620128976807. The reversal of 33620128976780 is 8767982102633.

It is a super-2 number, since 2×33620128976780² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840503224400 + ... + 840503224439.

It is an arithmetic number, because the mean of its divisors is an integer number (5883522570940).

Almost surely, 2^{33620128976780} is an apocalyptic number.

It is an amenable number.

33620128976780 is an abundant number, since it is smaller than the sum of its proper divisors (36982141874500).

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

33620128976780 is a wasteful number, since it uses less digits than its factorization.

33620128976780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681006448848 (or 1681006448846 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 33620128976780 in words is "thirty-three trillion, six hundred twenty billion, one hundred twenty-eight million, nine hundred seventy-six thousand, seven hundred eighty".