2542047765 has 16 divisors (see below), whose sum is σ = 4166479296. Its totient is φ = 1322691200.

The previous prime is 2542047763. The next prime is 2542047773. The reversal of 2542047765 is 5677402452.

It is not a de Polignac number, because 2542047765 - 2¹ = 2542047763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542047763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2066091 + ... + 2067320.

It is an arithmetic number, because the mean of its divisors is an integer number (260404956).

Almost surely, 2^2542047765 is an apocalyptic number.

It is an amenable number.

2542047765 is a deficient number, since it is larger than the sum of its proper divisors (1624431531).

2542047765 is a wasteful number, since it uses less digits than its factorization.

2542047765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133460.

The product of its (nonzero) digits is 470400, while the sum is 42.

The square root of 2542047765 is about 50418.7243491939. The cubic root of 2542047765 is about 1364.7755564905.

The spelling of 2542047765 in words is "two billion, five hundred forty-two million, forty-seven thousand, seven hundred sixty-five".