33428132437 has 16 divisors (see below), whose sum is σ = 38478637440. Its totient is φ = 28446694848.

The previous prime is 33428132417. The next prime is 33428132473. The reversal of 33428132437 is 73423182433.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 33428132437 - 2²³ = 33419743829 is a prime.

It is a super-2 number, since 2×33428132437² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33428132437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33428132417) 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, 1391514 + ... + 1415332.

It is an arithmetic number, because the mean of its divisors is an integer number (2404914840).

Almost surely, 2^33428132437 is an apocalyptic number.

It is an amenable number.

33428132437 is a deficient number, since it is larger than the sum of its proper divisors (5050505003).

33428132437 is a wasteful number, since it uses less digits than its factorization.

33428132437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25260.

The product of its digits is 290304, while the sum is 40.

The spelling of 33428132437 in words is "thirty-three billion, four hundred twenty-eight million, one hundred thirty-two thousand, four hundred thirty-seven".