139363596491 has 8 divisors (see below), whose sum is σ = 159781542624. Its totient is φ = 119072865600.

The previous prime is 139363596487. The next prime is 139363596509. The reversal of 139363596491 is 194695363931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139363596491 - 2² = 139363596487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139363596491.

It is not an unprimeable number, because it can be changed into a prime (139363596391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31801460 + ... + 31805841.

It is an arithmetic number, because the mean of its divisors is an integer number (19972692828).

Almost surely, 2^139363596491 is an apocalyptic number.

139363596491 is a deficient number, since it is larger than the sum of its proper divisors (20417946133).

139363596491 is an equidigital number, since it uses as much as digits as its factorization.

139363596491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63607621.

The product of its digits is 14171760, while the sum is 59.

The spelling of 139363596491 in words is "one hundred thirty-nine billion, three hundred sixty-three million, five hundred ninety-six thousand, four hundred ninety-one".