33172457493 has 16 divisors (see below), whose sum is σ = 53521948800. Its totient is φ = 17840649216.

The previous prime is 33172457443. The next prime is 33172457509. The reversal of 33172457493 is 39475427133.

It is not a de Polignac number, because 33172457493 - 2¹⁰ = 33172456469 is a prime.

It is a super-2 number, since 2×33172457493² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33172457443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46459668 + ... + 46460381.

It is an arithmetic number, because the mean of its divisors is an integer number (3345121800).

Almost surely, 2^33172457493 is an apocalyptic number.

It is an amenable number.

33172457493 is a deficient number, since it is larger than the sum of its proper divisors (20349491307).

33172457493 is a wasteful number, since it uses less digits than its factorization.

33172457493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92920076.

The product of its digits is 1905120, while the sum is 48.

The spelling of 33172457493 in words is "thirty-three billion, one hundred seventy-two million, four hundred fifty-seven thousand, four hundred ninety-three".