33921216954 has 12 divisors (see below), whose sum is σ = 73495970106. Its totient is φ = 11307072312.

The previous prime is 33921216929. The next prime is 33921216961. The reversal of 33921216954 is 45961212933.

33921216954 is a `hidden beast` number, since 339 + 212 + 16 + 95 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18177241329 + 15743975625 = 134823^2 + 125475^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 942256009 + ... + 942256044.

Almost surely, 2^33921216954 is an apocalyptic number.

33921216954 is an abundant number, since it is smaller than the sum of its proper divisors (39574753152).

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

33921216954 is a wasteful number, since it uses less digits than its factorization.

33921216954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884512061 (or 1884512058 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 33921216954 in words is "thirty-three billion, nine hundred twenty-one million, two hundred sixteen thousand, nine hundred fifty-four".