67423397534 has 4 divisors (see below), whose sum is σ = 101135096304. Its totient is φ = 33711698766.

The previous prime is 67423397521. The next prime is 67423397563. The reversal of 67423397534 is 43579332476.

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

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, 16855849382 + ... + 16855849385.

It is an arithmetic number, because the mean of its divisors is an integer number (25283774076).

Almost surely, 2^67423397534 is an apocalyptic number.

67423397534 is a deficient number, since it is larger than the sum of its proper divisors (33711698770).

67423397534 is a wasteful number, since it uses less digits than its factorization.

67423397534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33711698769.

The product of its digits is 11430720, while the sum is 53.

The spelling of 67423397534 in words is "sixty-seven billion, four hundred twenty-three million, three hundred ninety-seven thousand, five hundred thirty-four".