3501978736 has 20 divisors (see below), whose sum is σ = 7003958464. Its totient is φ = 1694505600.

The previous prime is 3501978731. The next prime is 3501978761. The reversal of 3501978736 is 6378791053.

3501978736 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 3501978736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3501978731) 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 3 ways as a sum of consecutive naturals, for example, 3529725 + ... + 3530716.

Almost surely, 2^3501978736 is an apocalyptic number.

It is an amenable number.

3501978736 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3501978736 is a wasteful number, since it uses less digits than its factorization.

3501978736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060480 (or 7060474 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 3501978736 is about 59177.5188395053. The cubic root of 3501978736 is about 1518.5805562208.

The spelling of 3501978736 in words is "three billion, five hundred one million, nine hundred seventy-eight thousand, seven hundred thirty-six".