67542235949694 has 64 divisors (see below), whose sum is σ = 147952030851072. Its totient is φ = 20385850396800.

The previous prime is 67542235949653. The next prime is 67542235949717. The reversal of 67542235949694 is 49694953224576.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48436264 + ... + 49811204.

It is an arithmetic number, because the mean of its divisors is an integer number (2311750482048).

Almost surely, 2^{67542235949694} is an apocalyptic number.

67542235949694 is an abundant number, since it is smaller than the sum of its proper divisors (80409794901378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67542235949694 is a wasteful number, since it uses less digits than its factorization.

67542235949694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377921.

The product of its digits is 3527193600, while the sum is 75.

The spelling of 67542235949694 in words is "sixty-seven trillion, five hundred forty-two billion, two hundred thirty-five million, nine hundred forty-nine thousand, six hundred ninety-four".