7681910540 has 24 divisors (see below), whose sum is σ = 16137364320. Its totient is φ = 3071744768.

The previous prime is 7681910521. The next prime is 7681910567. The reversal of 7681910540 is 450191867.

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, 392 + ... + 123951.

It is an arithmetic number, because the mean of its divisors is an integer number (672390180).

Almost surely, 2^7681910540 is an apocalyptic number.

It is an amenable number.

7681910540 is an abundant number, since it is smaller than the sum of its proper divisors (8455453780).

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

7681910540 is a wasteful number, since it uses less digits than its factorization.

7681910540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127441 (or 127439 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 7681910540 is about 87646.5090006442. The cubic root of 7681910540 is about 1973.1332499559.

The spelling of 7681910540 in words is "seven billion, six hundred eighty-one million, nine hundred ten thousand, five hundred forty".