67340387654 has 4 divisors (see below), whose sum is σ = 101010581484. Its totient is φ = 33670193826.

The previous prime is 67340387629. The next prime is 67340387711. The reversal of 67340387654 is 45678304376.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 67340387596 and 67340387605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16835096912 + ... + 16835096915.

It is an arithmetic number, because the mean of its divisors is an integer number (25252645371).

Almost surely, 2^67340387654 is an apocalyptic number.

67340387654 is a deficient number, since it is larger than the sum of its proper divisors (33670193830).

67340387654 is a wasteful number, since it uses less digits than its factorization.

67340387654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670193829.

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 67340387654 in words is "sixty-seven billion, three hundred forty million, three hundred eighty-seven thousand, six hundred fifty-four".