82772782354387 has 16 divisors (see below), whose sum is σ = 85123746160992. Its totient is φ = 80437649735680.

The previous prime is 82772782354373. The next prime is 82772782354463. The reversal of 82772782354387 is 78345328727728.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82772782354387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82772782354357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554877603 + ... + 555026755.

It is an arithmetic number, because the mean of its divisors is an integer number (5320234135062).

Almost surely, 2^{82772782354387} is an apocalyptic number.

82772782354387 is a deficient number, since it is larger than the sum of its proper divisors (2350963806605).

82772782354387 is a wasteful number, since it uses less digits than its factorization.

82772782354387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202118.

The product of its digits is 1770209280, while the sum is 73.

The spelling of 82772782354387 in words is "eighty-two trillion, seven hundred seventy-two billion, seven hundred eighty-two million, three hundred fifty-four thousand, three hundred eighty-seven".