33499733137 has 12 divisors (see below), whose sum is σ = 36280017180. Its totient is φ = 30918433728.

The previous prime is 33499733107. The next prime is 33499733149. The reversal of 33499733137 is 73133799433.

It can be written as a sum of positive squares in 6 ways, for example, as 6015398481 + 27484334656 = 77559^2 + 165784^2 .

It is not a de Polignac number, because 33499733137 - 2⁷ = 33499733009 is a prime.

It is a super-2 number, since 2×33499733137² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33499733107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2268903 + ... + 2283619.

It is an arithmetic number, because the mean of its divisors is an integer number (3023334765).

Almost surely, 2^33499733137 is an apocalyptic number.

It is an amenable number.

33499733137 is a deficient number, since it is larger than the sum of its proper divisors (2780284043).

33499733137 is a wasteful number, since it uses less digits than its factorization.

33499733137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28212 (or 28199 counting only the distinct ones).

The product of its digits is 3857868, while the sum is 52.

The spelling of 33499733137 in words is "thirty-three billion, four hundred ninety-nine million, seven hundred thirty-three thousand, one hundred thirty-seven".