33507407412 has 18 divisors (see below), whose sum is σ = 84699279938. Its totient is φ = 11169135792.

The previous prime is 33507407407. The next prime is 33507407429. The reversal of 33507407412 is 21470470533.

33507407412 is a `hidden beast` number, since 33 + 507 + 40 + 74 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19520560656 + 13986846756 = 139716^2 + 118266^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×33507407412² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 930761317 = 33507407412 / (3 + 3 + 5 + 0 + 7 + 4 + 0 + 7 + 4 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 465380623 + ... + 465380694.

Almost surely, 2^33507407412 is an apocalyptic number.

It is an amenable number.

33507407412 is an abundant number, since it is smaller than the sum of its proper divisors (51191872526).

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

33507407412 is a wasteful number, since it uses less digits than its factorization.

33507407412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930761327 (or 930761322 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

Adding to 33507407412 its reverse (21470470533), we get a palindrome (54977877945).

The spelling of 33507407412 in words is "thirty-three billion, five hundred seven million, four hundred seven thousand, four hundred twelve".