67340740687 has 12 divisors (see below), whose sum is σ = 74394919368. Its totient is φ = 60908078000.

The previous prime is 67340740669. The next prime is 67340740711. The reversal of 67340740687 is 78604704376.

It is not a de Polignac number, because 67340740687 - 2⁷ = 67340740559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67340740657) 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, 1388689 + ... + 1436362.

It is an arithmetic number, because the mean of its divisors is an integer number (6199576614).

Almost surely, 2^67340740687 is an apocalyptic number.

67340740687 is a deficient number, since it is larger than the sum of its proper divisors (7054178681).

67340740687 is a wasteful number, since it uses less digits than its factorization.

67340740687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825270 (or 2825259 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 67340740687 in words is "sixty-seven billion, three hundred forty million, seven hundred forty thousand, six hundred eighty-seven".