2040771879 has 24 divisors (see below), whose sum is σ = 3002471472. Its totient is φ = 1335484800.

The previous prime is 2040771877. The next prime is 2040771883. The reversal of 2040771879 is 9781770402.

It is a happy number.

It is not a de Polignac number, because 2040771879 - 2¹ = 2040771877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040771871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108579 + ... + 125979.

It is an arithmetic number, because the mean of its divisors is an integer number (125102978).

Almost surely, 2^2040771879 is an apocalyptic number.

2040771879 is a deficient number, since it is larger than the sum of its proper divisors (961699593).

2040771879 is a wasteful number, since it uses less digits than its factorization.

2040771879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17647 (or 17644 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 2040771879 is about 45174.9031985681. The cubic root of 2040771879 is about 1268.4250796041.

The spelling of 2040771879 in words is "two billion, forty million, seven hundred seventy-one thousand, eight hundred seventy-nine".