33438466868 has 24 divisors (see below), whose sum is σ = 60003008520. Its totient is φ = 16299601920.

The previous prime is 33438466861. The next prime is 33438466877. The reversal of 33438466868 is 86866483433.

It can be written as a sum of positive squares in 4 ways, for example, as 3436069924 + 30002396944 = 58618^2 + 173212^2 .

It is a super-2 number, since 2×33438466868² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33438466861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578813 + ... + 633956.

It is an arithmetic number, because the mean of its divisors is an integer number (2500125355).

Almost surely, 2^33438466868 is an apocalyptic number.

It is an amenable number.

33438466868 is a deficient number, since it is larger than the sum of its proper divisors (26564541652).

33438466868 is a wasteful number, since it uses less digits than its factorization.

33438466868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212947 (or 1212945 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 59.

The spelling of 33438466868 in words is "thirty-three billion, four hundred thirty-eight million, four hundred sixty-six thousand, eight hundred sixty-eight".