2791978524811 has 32 divisors (see below), whose sum is σ = 3378473922560. Its totient is φ = 2257060982400.

The previous prime is 2791978524791. The next prime is 2791978524827. The reversal of 2791978524811 is 1184258791972.

It is a happy number.

2791978524811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2791978524811 - 2⁵ = 2791978524779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2791978524851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475300 + ... + 2410366.

It is an arithmetic number, because the mean of its divisors is an integer number (105577310080).

Almost surely, 2^{2791978524811} is an apocalyptic number.

2791978524811 is a deficient number, since it is larger than the sum of its proper divisors (586495397749).

2791978524811 is a wasteful number, since it uses less digits than its factorization.

2791978524811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935275.

The product of its digits is 20321280, while the sum is 64.

The spelling of 2791978524811 in words is "two trillion, seven hundred ninety-one billion, nine hundred seventy-eight million, five hundred twenty-four thousand, eight hundred eleven".