1217733328137 has 8 divisors (see below), whose sum is σ = 1624512240000. Its totient is φ = 811388317520.

The previous prime is 1217733328103. The next prime is 1217733328157. The reversal of 1217733328137 is 7318233377121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1217733328137 - 2³⁰ = 1216659586313 is a prime.

It is a super-2 number, since 2×1217733328137² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1217733328157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108468762 + ... + 108479987.

It is an arithmetic number, because the mean of its divisors is an integer number (203064030000).

Almost surely, 2^{1217733328137} is an apocalyptic number.

It is an amenable number.

1217733328137 is a deficient number, since it is larger than the sum of its proper divisors (406778911863).

1217733328137 is a wasteful number, since it uses less digits than its factorization.

1217733328137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216950623.

The product of its digits is 889056, while the sum is 48.

The spelling of 1217733328137 in words is "one trillion, two hundred seventeen billion, seven hundred thirty-three million, three hundred twenty-eight thousand, one hundred thirty-seven".