2539770820 has 24 divisors (see below), whose sum is σ = 5408641728. Its totient is φ = 1001599200.

The previous prime is 2539770803. The next prime is 2539770847. The reversal of 2539770820 is 280779352.

2539770820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892866 + ... + 895705.

It is an arithmetic number, because the mean of its divisors is an integer number (225360072).

Almost surely, 2^2539770820 is an apocalyptic number.

2539770820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2539770820 is an abundant number, since it is smaller than the sum of its proper divisors (2868870908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2539770820 is a wasteful number, since it uses less digits than its factorization.

2539770820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788651 (or 1788649 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 2539770820 is about 50396.1389394069. The cubic root of 2539770820 is about 1364.3679524060.

The spelling of 2539770820 in words is "two billion, five hundred thirty-nine million, seven hundred seventy thousand, eight hundred twenty".