73997317206 has 40 divisors (see below), whose sum is σ = 169664838024. Its totient is φ = 24092147520.

The previous prime is 73997317193. The next prime is 73997317231. The reversal of 73997317206 is 60271379937.

It is a happy number.

73997317206 is a `hidden beast` number, since 7 + 39 + 97 + 317 + 206 = 666.

It is a super-3 number, since 3×73997317206³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5304355 + ... + 5318286.

Almost surely, 2^73997317206 is an apocalyptic number.

73997317206 is an abundant number, since it is smaller than the sum of its proper divisors (95667520818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73997317206 is a wasteful number, since it uses less digits than its factorization.

73997317206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10622698 (or 10622689 counting only the distinct ones).

The product of its (nonzero) digits is 3000564, while the sum is 54.

The spelling of 73997317206 in words is "seventy-three billion, nine hundred ninety-seven million, three hundred seventeen thousand, two hundred six".