7874622640 has 20 divisors (see below), whose sum is σ = 18308497824. Its totient is φ = 3149849024.

The previous prime is 7874622611. The next prime is 7874622667. The reversal of 7874622640 is 462264787.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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, 49216312 + ... + 49216471.

Almost surely, 2^7874622640 is an apocalyptic number.

It is an amenable number.

7874622640 is an abundant number, since it is smaller than the sum of its proper divisors (10433875184).

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

7874622640 is a wasteful number, since it uses less digits than its factorization.

7874622640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98432796 (or 98432790 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The square root of 7874622640 is about 88739.0705382922. The cubic root of 7874622640 is about 1989.4968248791.

The spelling of 7874622640 in words is "seven billion, eight hundred seventy-four million, six hundred twenty-two thousand, six hundred forty".