33057407197 has 4 divisors (see below), whose sum is σ = 34197317820. Its totient is φ = 31917496576.

The previous prime is 33057407153. The next prime is 33057407209. The reversal of 33057407197 is 79170475033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10406856196 + 22650551001 = 102014^2 + 150501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33057407197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33057407297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569955268 + ... + 569955325.

It is an arithmetic number, because the mean of its divisors is an integer number (8549329455).

Almost surely, 2^33057407197 is an apocalyptic number.

It is an amenable number.

33057407197 is a deficient number, since it is larger than the sum of its proper divisors (1139910623).

33057407197 is a wasteful number, since it uses less digits than its factorization.

33057407197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139910622.

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 33057407197 in words is "thirty-three billion, fifty-seven million, four hundred seven thousand, one hundred ninety-seven".