73699499637 has 12 divisors (see below), whose sum is σ = 106695142944. Its totient is φ = 49022087400.

The previous prime is 73699499609. The next prime is 73699499677.

73699499637 is a `hidden beast` number, since 73 + 6 + 9 + 9 + 499 + 63 + 7 = 666.

73699499637 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 73699499637 - 2⁸ = 73699499381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73699499677) 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, 9238489 + ... + 9246462.

It is an arithmetic number, because the mean of its divisors is an integer number (8891261912).

Almost surely, 2^73699499637 is an apocalyptic number.

It is an amenable number.

73699499637 is a deficient number, since it is larger than the sum of its proper divisors (32995643307).

73699499637 is a wasteful number, since it uses less digits than its factorization.

73699499637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18485400 (or 18485397 counting only the distinct ones).

The product of its digits is 416649744, while the sum is 72.

The spelling of 73699499637 in words is "seventy-three billion, six hundred ninety-nine million, four hundred ninety-nine thousand, six hundred thirty-seven".