2068961564761 has 128 divisors (see below), whose sum is σ = 2694739525632. Its totient is φ = 1545433344000.

The previous prime is 2068961564753. The next prime is 2068961564779. The reversal of 2068961564761 is 1674651698602.

It is not a de Polignac number, because 2068961564761 - 2³ = 2068961564753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a self number, because there is not a number n which added to its sum of digits gives 2068961564761.

It is not an unprimeable number, because it can be changed into a prime (2068961564711) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3971135181 + ... + 3971135701.

It is an arithmetic number, because the mean of its divisors is an integer number (21052652544).

Almost surely, 2^{2068961564761} is an apocalyptic number.

It is an amenable number.

2068961564761 is a deficient number, since it is larger than the sum of its proper divisors (625777960871).

2068961564761 is a wasteful number, since it uses less digits than its factorization.

2068961564761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 2068961564761 in words is "two trillion, sixty-eight billion, nine hundred sixty-one million, five hundred sixty-four thousand, seven hundred sixty-one".