33172457494 has 16 divisors (see below), whose sum is σ = 56033243136. Its totient is φ = 14591989800.

The previous prime is 33172457443. The next prime is 33172457509. The reversal of 33172457494 is 49475427133.

It is a super-2 number, since 2×33172457494² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 24319302 + ... + 24320665.

It is an arithmetic number, because the mean of its divisors is an integer number (3502077696).

Almost surely, 2^33172457494 is an apocalyptic number.

33172457494 is a deficient number, since it is larger than the sum of its proper divisors (22860785642).

33172457494 is a wasteful number, since it uses less digits than its factorization.

33172457494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48640011.

The product of its digits is 2540160, while the sum is 49.

The spelling of 33172457494 in words is "thirty-three billion, one hundred seventy-two million, four hundred fifty-seven thousand, four hundred ninety-four".