68531754437187 has 8 divisors (see below), whose sum is σ = 95348527912704. Its totient is φ = 43701408626568.

The previous prime is 68531754437143. The next prime is 68531754437221. The reversal of 68531754437187 is 78173445713586.

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

It is not a de Polignac number, because 68531754437187 - 2¹⁰ = 68531754436163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 993213832423 = 68531754437187 / (6 + 8 + 5 + 3 + 1 + 7 + 5 + 4 + 4 + 3 + 7 + 1 + 8 + 7).

It is not an unprimeable number, because it can be changed into a prime (68531754437987) 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, 496606916143 + ... + 496606916280.

It is an arithmetic number, because the mean of its divisors is an integer number (11918565989088).

Almost surely, 2^{68531754437187} is an apocalyptic number.

68531754437187 is a deficient number, since it is larger than the sum of its proper divisors (26816773475517).

68531754437187 is a wasteful number, since it uses less digits than its factorization.

68531754437187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993213832449.

The product of its digits is 474163200, while the sum is 69.

The spelling of 68531754437187 in words is "sixty-eight trillion, five hundred thirty-one billion, seven hundred fifty-four million, four hundred thirty-seven thousand, one hundred eighty-seven".