2140781604479 has 8 divisors (see below), whose sum is σ = 2465283942528. Its totient is φ = 1820948365080.

The previous prime is 2140781604443. The next prime is 2140781604523. The reversal of 2140781604479 is 9744061870412.

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 2140781604479 - 2²⁸ = 2140513169023 is a prime.

It is a super-2 number, since 2×2140781604479² (a number of 25 digits) contains 22 as substring.

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 2140781604479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140781604439) 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, 1167273677 + ... + 1167275510.

It is an arithmetic number, because the mean of its divisors is an integer number (308160492816).

Almost surely, 2^{2140781604479} is an apocalyptic number.

2140781604479 is a deficient number, since it is larger than the sum of its proper divisors (324502338049).

2140781604479 is a wasteful number, since it uses less digits than its factorization.

2140781604479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334549325.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 2140781604479 in words is "two trillion, one hundred forty billion, seven hundred eighty-one million, six hundred four thousand, four hundred seventy-nine".