67923039321 has 10 divisors (see below), whose sum is σ = 101465281082. Its totient is φ = 45282026160.

The previous prime is 67923039307. The next prime is 67923039361. The reversal of 67923039321 is 12393032976.

67923039321 is a `hidden beast` number, since 6 + 7 + 9 + 230 + 393 + 21 = 666.

67923039321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 53204496921 + 14718542400 = 230661^2 + 121320^2 .

It is not a de Polignac number, because 67923039321 - 2⁷ = 67923039193 is a prime.

It is a super-2 number, since 2×67923039321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67923039361) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 419277940 + ... + 419278101.

Almost surely, 2^67923039321 is an apocalyptic number.

It is an amenable number.

67923039321 is a deficient number, since it is larger than the sum of its proper divisors (33542241761).

67923039321 is an equidigital number, since it uses as much as digits as its factorization.

67923039321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838556053 (or 838556044 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

It can be divided in two parts, 679 and 23039321, that added together give a square (23040000 = 4800²).

The spelling of 67923039321 in words is "sixty-seven billion, nine hundred twenty-three million, thirty-nine thousand, three hundred twenty-one".