33400084865 has 24 divisors (see below), whose sum is σ = 46932610752. Its totient is φ = 22751215200.

The previous prime is 33400084853. The next prime is 33400084891. The reversal of 33400084865 is 56848000433.

It is a happy number.

It is not a de Polignac number, because 33400084865 - 2³⁴ = 16220215681 is a prime.

It is a super-2 number, since 2×33400084865² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 414419 + ... + 488408.

It is an arithmetic number, because the mean of its divisors is an integer number (1955525448).

Almost surely, 2^33400084865 is an apocalyptic number.

33400084865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33400084865 is a deficient number, since it is larger than the sum of its proper divisors (13532525887).

33400084865 is a wasteful number, since it uses less digits than its factorization.

33400084865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902997 (or 902990 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 33400084865 in words is "thirty-three billion, four hundred million, eighty-four thousand, eight hundred sixty-five".