139876840847 has 4 divisors (see below), whose sum is σ = 139911752976. Its totient is φ = 139841928720.

The previous prime is 139876840823. The next prime is 139876840891. The reversal of 139876840847 is 748048678931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139876840847 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 (139876840447) 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, 17450054 + ... + 17458067.

It is an arithmetic number, because the mean of its divisors is an integer number (34977938244).

Almost surely, 2^139876840847 is an apocalyptic number.

139876840847 is a deficient number, since it is larger than the sum of its proper divisors (34912129).

139876840847 is an equidigital number, since it uses as much as digits as its factorization.

139876840847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34912128.

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 139876840847 in words is "one hundred thirty-nine billion, eight hundred seventy-six million, eight hundred forty thousand, eight hundred forty-seven".