87913767782 has 16 divisors (see below), whose sum is σ = 132057076032. Its totient is φ = 43894777920.

The previous prime is 87913767779. The next prime is 87913767839. The reversal of 87913767782 is 28776731978.

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, 6590003 + ... + 6603329.

It is an arithmetic number, because the mean of its divisors is an integer number (8253567252).

Almost surely, 2^87913767782 is an apocalyptic number.

87913767782 is a deficient number, since it is larger than the sum of its proper divisors (44143308250).

87913767782 is a wasteful number, since it uses less digits than its factorization.

87913767782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17743.

The product of its digits is 49787136, while the sum is 65.

The spelling of 87913767782 in words is "eighty-seven billion, nine hundred thirteen million, seven hundred sixty-seven thousand, seven hundred eighty-two".