67693423707 has 144 divisors (see below), whose sum is σ = 126896035680. Its totient is φ = 35544966912.

The previous prime is 67693423697. The next prime is 67693423709. The reversal of 67693423707 is 70732439676.

It is a happy number.

67693423707 is a `hidden beast` number, since 67 + 6 + 93 + 423 + 70 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-67693423707 is a prime.

It is a super-2 number, since 2×67693423707² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67693423709) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 61933053 + ... + 61934145.

It is an arithmetic number, because the mean of its divisors is an integer number (881222470).

Almost surely, 2^67693423707 is an apocalyptic number.

67693423707 is a deficient number, since it is larger than the sum of its proper divisors (59202611973).

67693423707 is a wasteful number, since it uses less digits than its factorization.

67693423707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 54.

The spelling of 67693423707 in words is "sixty-seven billion, six hundred ninety-three million, four hundred twenty-three thousand, seven hundred seven".