67900123394 has 16 divisors (see below), whose sum is σ = 106523932032. Its totient is φ = 32398964928.

The previous prime is 67900123393. The next prime is 67900123439. The reversal of 67900123394 is 49332100976.

67900123394 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 2×67900123394² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67900123393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684574 + ... + 1724409.

It is an arithmetic number, because the mean of its divisors is an integer number (6657745752).

Almost surely, 2^67900123394 is an apocalyptic number.

67900123394 is a deficient number, since it is larger than the sum of its proper divisors (38623808638).

67900123394 is a wasteful number, since it uses less digits than its factorization.

67900123394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409441.

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 67900123394 in words is "sixty-seven billion, nine hundred million, one hundred twenty-three thousand, three hundred ninety-four".