67399250139 has 36 divisors (see below), whose sum is σ = 106249718016. Its totient is φ = 41149757376.

The previous prime is 67399250131. The next prime is 67399250173. The reversal of 67399250139 is 93105299376.

It is a happy number.

It is not a de Polignac number, because 67399250139 - 2³ = 67399250131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67399250131) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18709 + ... + 367625.

It is an arithmetic number, because the mean of its divisors is an integer number (2951381056).

Almost surely, 2^67399250139 is an apocalyptic number.

67399250139 is a deficient number, since it is larger than the sum of its proper divisors (38850467877).

67399250139 is a wasteful number, since it uses less digits than its factorization.

67399250139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349076 (or 349060 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 54.

The spelling of 67399250139 in words is "sixty-seven billion, three hundred ninety-nine million, two hundred fifty thousand, one hundred thirty-nine".