67736521371 has 8 divisors (see below), whose sum is σ = 90352100160. Its totient is φ = 45139311752.

The previous prime is 67736521351. The next prime is 67736521379. The reversal of 67736521371 is 17312563776.

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 67736521371 - 2⁵ = 67736521339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67736521371.

It is not an unprimeable number, because it can be changed into a prime (67736521379) 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, 4583685 + ... + 4598438.

It is an arithmetic number, because the mean of its divisors is an integer number (11294012520).

Almost surely, 2^67736521371 is an apocalyptic number.

67736521371 is a deficient number, since it is larger than the sum of its proper divisors (22615578789).

67736521371 is a wasteful number, since it uses less digits than its factorization.

67736521371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184585.

The product of its digits is 1111320, while the sum is 48.

The spelling of 67736521371 in words is "sixty-seven billion, seven hundred thirty-six million, five hundred twenty-one thousand, three hundred seventy-one".