12765140137639 has 8 divisors (see below), whose sum is σ = 12783628814112. Its totient is φ = 12746652256800.

The previous prime is 12765140137609. The next prime is 12765140137657. The reversal of 12765140137639 is 93673104156721.

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 12765140137639 - 2¹¹ = 12765140135591 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 12765140137639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765140137609) 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, 36912897 + ... + 37257109.

It is an arithmetic number, because the mean of its divisors is an integer number (1597953601764).

Almost surely, 2^{12765140137639} is an apocalyptic number.

12765140137639 is a deficient number, since it is larger than the sum of its proper divisors (18488676473).

12765140137639 is an equidigital number, since it uses as much as digits as its factorization.

12765140137639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397817.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 12765140137639 in words is "twelve trillion, seven hundred sixty-five billion, one hundred forty million, one hundred thirty-seven thousand, six hundred thirty-nine".