2542047764 has 6 divisors (see below), whose sum is σ = 4448583594. Its totient is φ = 1271023880.

The previous prime is 2542047763. The next prime is 2542047773. The reversal of 2542047764 is 4677402452.

It can be written as a sum of positive squares in only one way, i.e., 2530090000 + 11957764 = 50300^2 + 3458^2 .

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 polite number, since it can be written as a sum of consecutive naturals, namely, 317755967 + ... + 317755974.

It is an arithmetic number, because the mean of its divisors is an integer number (741430599).

Almost surely, 2^2542047764 is an apocalyptic number.

It is an amenable number.

2542047764 is a deficient number, since it is larger than the sum of its proper divisors (1906535830).

2542047764 is a wasteful number, since it uses less digits than its factorization.

2542047764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635511945 (or 635511943 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 41.

The square root of 2542047764 is about 50418.7243392770. The cubic root of 2542047764 is about 1364.7755563116.

The spelling of 2542047764 in words is "two billion, five hundred forty-two million, forty-seven thousand, seven hundred sixty-four".