67398538023 has 32 divisors (see below), whose sum is σ = 102266841600. Its totient is φ = 43846584768.

The previous prime is 67398538019. The next prime is 67398538027. The reversal of 67398538023 is 32083589376.

It is an interprime number because it is at equal distance from previous prime (67398538019) and next prime (67398538027).

It is not a de Polignac number, because 67398538023 - 2² = 67398538019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67398538027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1247158 + ... + 1300076.

It is an arithmetic number, because the mean of its divisors is an integer number (3195838800).

Almost surely, 2^67398538023 is an apocalyptic number.

67398538023 is a deficient number, since it is larger than the sum of its proper divisors (34868303577).

67398538023 is a wasteful number, since it uses less digits than its factorization.

67398538023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54068 (or 54062 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 67398538023 in words is "sixty-seven billion, three hundred ninety-eight million, five hundred thirty-eight thousand, twenty-three".