33868267816 has 32 divisors (see below), whose sum is σ = 69557049000. Its totient is φ = 15388420096.

The previous prime is 33868267781. The next prime is 33868267831. The reversal of 33868267816 is 61876286833.

It can be written as a sum of positive squares in 4 ways, for example, as 33728791716 + 139476100 = 183654^2 + 11810^2 .

It is a super-2 number, since 2×33868267816² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4289701 + ... + 4297588.

Almost surely, 2^33868267816 is an apocalyptic number.

It is an amenable number.

33868267816 is an abundant number, since it is smaller than the sum of its proper divisors (35688781184).

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

33868267816 is a wasteful number, since it uses less digits than its factorization.

33868267816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587341 (or 8587337 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 58.

The spelling of 33868267816 in words is "thirty-three billion, eight hundred sixty-eight million, two hundred sixty-seven thousand, eight hundred sixteen".