67923779156 has 12 divisors (see below), whose sum is σ = 119004997440. Its totient is φ = 33922351320.

The previous prime is 67923779137. The next prime is 67923779179. The reversal of 67923779156 is 65197732976.

67923779156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67923779156² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9880700 + ... + 9887571.

It is an arithmetic number, because the mean of its divisors is an integer number (9917083120).

Almost surely, 2^67923779156 is an apocalyptic number.

It is an amenable number.

67923779156 is a deficient number, since it is larger than the sum of its proper divisors (51081218284).

67923779156 is a wasteful number, since it uses less digits than its factorization.

67923779156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19769134 (or 19769132 counting only the distinct ones).

The product of its digits is 30005640, while the sum is 62.

The spelling of 67923779156 in words is "sixty-seven billion, nine hundred twenty-three million, seven hundred seventy-nine thousand, one hundred fifty-six".