2040978254723 has 4 divisors (see below), whose sum is σ = 2046663431280. Its totient is φ = 2035293078168.

The previous prime is 2040978254677. The next prime is 2040978254729. The reversal of 2040978254723 is 3274528790402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040978254723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040978254729) 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, 2842587740 + ... + 2842588457.

It is an arithmetic number, because the mean of its divisors is an integer number (511665857820).

Almost surely, 2^{2040978254723} is an apocalyptic number.

2040978254723 is a deficient number, since it is larger than the sum of its proper divisors (5685176557).

2040978254723 is an equidigital number, since it uses as much as digits as its factorization.

2040978254723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685176556.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 2040978254723 in words is "two trillion, forty billion, nine hundred seventy-eight million, two hundred fifty-four thousand, seven hundred twenty-three".