83781510268 has 12 divisors (see below), whose sum is σ = 154334361160. Its totient is φ = 39685978512.

The previous prime is 83781510251. The next prime is 83781510271. The reversal of 83781510268 is 86201518738.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551194071 + ... + 551194222.

Almost surely, 2^83781510268 is an apocalyptic number.

It is an amenable number.

83781510268 is a deficient number, since it is larger than the sum of its proper divisors (70552850892).

83781510268 is a wasteful number, since it uses less digits than its factorization.

83781510268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102388316 (or 1102388314 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 83781510268 in words is "eighty-three billion, seven hundred eighty-one million, five hundred ten thousand, two hundred sixty-eight".