73871726136385 has 8 divisors (see below), whose sum is σ = 88646125268736. Its totient is φ = 59097344972400.

The previous prime is 73871726136367. The next prime is 73871726136407. The reversal of 73871726136385 is 58363162717837.

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

It is not a de Polignac number, because 73871726136385 - 2²¹ = 73871724039233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73871726136385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7428210 + ... + 14245060.

It is an arithmetic number, because the mean of its divisors is an integer number (11080765658592).

Almost surely, 2^{73871726136385} is an apocalyptic number.

It is an amenable number.

73871726136385 is a deficient number, since it is larger than the sum of its proper divisors (14774399132351).

73871726136385 is a wasteful number, since it uses less digits than its factorization.

73871726136385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984183.

The product of its digits is 213373440, while the sum is 67.

The spelling of 73871726136385 in words is "seventy-three trillion, eight hundred seventy-one billion, seven hundred twenty-six million, one hundred thirty-six thousand, three hundred eighty-five".