139321869007 has 4 divisors (see below), whose sum is σ = 139381385176. Its totient is φ = 139262352840.

The previous prime is 139321868981. The next prime is 139321869067. The reversal of 139321869007 is 700968123931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139321869007 - 2¹⁵ = 139321836239 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 (139321869067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29754573 + ... + 29759254.

It is an arithmetic number, because the mean of its divisors is an integer number (34845346294).

Almost surely, 2^139321869007 is an apocalyptic number.

139321869007 is a deficient number, since it is larger than the sum of its proper divisors (59516169).

139321869007 is an equidigital number, since it uses as much as digits as its factorization.

139321869007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59516168.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 139321869007 in words is "one hundred thirty-nine billion, three hundred twenty-one million, eight hundred sixty-nine thousand, seven".