39504140494 has 16 divisors (see below), whose sum is σ = 72930721248. Its totient is φ = 15628011552.

The previous prime is 39504140443. The next prime is 39504140537. The reversal of 39504140494 is 49404140593.

It is a self number, because there is not a number n which added to its sum of digits gives 39504140494.

It is a congruent number.

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, 108527677 + ... + 108528040.

It is an arithmetic number, because the mean of its divisors is an integer number (4558170078).

Almost surely, 2^39504140494 is an apocalyptic number.

39504140494 is a deficient number, since it is larger than the sum of its proper divisors (33426580754).

39504140494 is a wasteful number, since it uses less digits than its factorization.

39504140494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217055739.

The product of its (nonzero) digits is 311040, while the sum is 43.

Subtracting 39504140494 from its reverse (49404140593), we obtain a palindrome (9900000099).

The spelling of 39504140494 in words is "thirty-nine billion, five hundred four million, one hundred forty thousand, four hundred ninety-four".