2146777113647 has 16 divisors (see below), whose sum is σ = 2235657894912. Its totient is φ = 2060100487200.

The previous prime is 2146777113631. The next prime is 2146777113653. The reversal of 2146777113647 is 7463117776412.

It is a cyclic number.

It is not a de Polignac number, because 2146777113647 - 2⁴ = 2146777113631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146777113592 and 2146777113601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146777115647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706393 + ... + 2684274.

It is an arithmetic number, because the mean of its divisors is an integer number (139728618432).

Almost surely, 2^{2146777113647} is an apocalyptic number.

2146777113647 is a deficient number, since it is larger than the sum of its proper divisors (88880781265).

2146777113647 is a wasteful number, since it uses less digits than its factorization.

2146777113647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390918.

The product of its digits is 8297856, while the sum is 56.

The spelling of 2146777113647 in words is "two trillion, one hundred forty-six billion, seven hundred seventy-seven million, one hundred thirteen thousand, six hundred forty-seven".