1399614561607 has 4 divisors (see below), whose sum is σ = 1433751502176. Its totient is φ = 1365477621040.

The previous prime is 1399614561539. The next prime is 1399614561623. The reversal of 1399614561607 is 7061654169931.

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 1399614561607 - 2¹¹ = 1399614559559 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 (1399614561307) 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, 17068470223 + ... + 17068470304.

It is an arithmetic number, because the mean of its divisors is an integer number (358437875544).

Almost surely, 2^{1399614561607} is an apocalyptic number.

1399614561607 is a deficient number, since it is larger than the sum of its proper divisors (34136940569).

1399614561607 is an equidigital number, since it uses as much as digits as its factorization.

1399614561607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34136940568.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 1399614561607 in words is "one trillion, three hundred ninety-nine billion, six hundred fourteen million, five hundred sixty-one thousand, six hundred seven".