139533263671 has 4 divisors (see below), whose sum is σ = 139535395344. Its totient is φ = 139531132000.

The previous prime is 139533263657. The next prime is 139533263707. The reversal of 139533263671 is 176362335931.

139533263671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176362335931 = 229153 ⋅769627.

It is a cyclic number.

It is not a de Polignac number, because 139533263671 - 2²¹ = 139531166519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139533263371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964435 + ... + 1099636.

It is an arithmetic number, because the mean of its divisors is an integer number (34883848836).

Almost surely, 2^139533263671 is an apocalyptic number.

139533263671 is a deficient number, since it is larger than the sum of its proper divisors (2131673).

139533263671 is an equidigital number, since it uses as much as digits as its factorization.

139533263671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131672.

The product of its digits is 1837080, while the sum is 49.

The spelling of 139533263671 in words is "one hundred thirty-nine billion, five hundred thirty-three million, two hundred sixty-three thousand, six hundred seventy-one".