2539307794 has 4 divisors (see below), whose sum is σ = 3808961694. Its totient is φ = 1269653896.

The previous prime is 2539307789. The next prime is 2539307803. The reversal of 2539307794 is 4977039352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2424282169 + 115025625 = 49237^2 + 10725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634826947 + ... + 634826950.

Almost surely, 2^2539307794 is an apocalyptic number.

2539307794 is a deficient number, since it is larger than the sum of its proper divisors (1269653900).

2539307794 is a wasteful number, since it uses less digits than its factorization.

2539307794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269653899.

The product of its (nonzero) digits is 1428840, while the sum is 49.

The square root of 2539307794 is about 50391.5448661777. The cubic root of 2539307794 is about 1364.2850346580.

The spelling of 2539307794 in words is "two billion, five hundred thirty-nine million, three hundred seven thousand, seven hundred ninety-four".