39904734287 has 32 divisors (see below), whose sum is σ = 48733850880. Its totient is φ = 32202938880.

The previous prime is 39904734277. The next prime is 39904734293. The reversal of 39904734287 is 78243740993.

It is not a de Polignac number, because 39904734287 - 2⁸ = 39904734031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39904734217) 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 31 ways as a sum of consecutive naturals, for example, 781793 + ... + 831269.

It is an arithmetic number, because the mean of its divisors is an integer number (1522932840).

Almost surely, 2^39904734287 is an apocalyptic number.

39904734287 is a deficient number, since it is larger than the sum of its proper divisors (8829116593).

39904734287 is a wasteful number, since it uses less digits than its factorization.

39904734287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49751.

The product of its (nonzero) digits is 9144576, while the sum is 56.

It can be divided in two parts, 399047 and 34287, that added together give a palindrome (433334).

The spelling of 39904734287 in words is "thirty-nine billion, nine hundred four million, seven hundred thirty-four thousand, two hundred eighty-seven".