73137268491 has 16 divisors (see below), whose sum is σ = 111478694400. Its totient is φ = 41780939328.

The previous prime is 73137268489. The next prime is 73137268513. The reversal of 73137268491 is 19486273137.

It is a happy number.

It is not a de Polignac number, because 73137268491 - 2¹ = 73137268489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73137268991) 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, 414546 + ... + 564023.

It is an arithmetic number, because the mean of its divisors is an integer number (6967418400).

Almost surely, 2^73137268491 is an apocalyptic number.

73137268491 is a deficient number, since it is larger than the sum of its proper divisors (38341425909).

73137268491 is a wasteful number, since it uses less digits than its factorization.

73137268491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982138.

The product of its digits is 1524096, while the sum is 51.

The spelling of 73137268491 in words is "seventy-three billion, one hundred thirty-seven million, two hundred sixty-eight thousand, four hundred ninety-one".