2539501680 has 40 divisors (see below), whose sum is σ = 7872455952. Its totient is φ = 677200384.

The previous prime is 2539501669. The next prime is 2539501687. The reversal of 2539501680 is 861059352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539501687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290389 + ... + 5290868.

Almost surely, 2^2539501680 is an apocalyptic number.

2539501680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2539501680 is an abundant number, since it is smaller than the sum of its proper divisors (5332954272).

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

2539501680 is a wasteful number, since it uses less digits than its factorization.

2539501680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581273 (or 10581267 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 2539501680 is about 50393.4686244160. The cubic root of 2539501680 is about 1364.3197565925.

The spelling of 2539501680 in words is "two billion, five hundred thirty-nine million, five hundred one thousand, six hundred eighty".