33186988229972 has 12 divisors (see below), whose sum is σ = 58077525148020. Its totient is φ = 16593409616256.

The previous prime is 33186988229947. The next prime is 33186988230061. The reversal of 33186988229972 is 27992288968133.

It can be written as a sum of positive squares in 2 ways, for example, as 1139569060036 + 32047419169936 = 1067506^2 + 5661044^2 .

It is a super-2 number, since 2×33186988229972² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33186988229893 and 33186988229902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20236847 + ... + 21815222.

It is an arithmetic number, because the mean of its divisors is an integer number (4839793762335).

Almost surely, 2^{33186988229972} is an apocalyptic number.

It is an amenable number.

33186988229972 is a deficient number, since it is larger than the sum of its proper divisors (24890536918048).

33186988229972 is a wasteful number, since it uses less digits than its factorization.

33186988229972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42249370 (or 42249368 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 77.

The spelling of 33186988229972 in words is "thirty-three trillion, one hundred eighty-six billion, nine hundred eighty-eight million, two hundred twenty-nine thousand, nine hundred seventy-two".