82776230101815 has 16 divisors (see below), whose sum is σ = 135259882380288. Its totient is φ = 43208017981856.

The previous prime is 82776230101751. The next prime is 82776230101853. The reversal of 82776230101815 is 51810103267728.

It is a cyclic number.

It is not a de Polignac number, because 82776230101815 - 2⁶ = 82776230101751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58706545467 + ... + 58706546876.

It is an arithmetic number, because the mean of its divisors is an integer number (8453742648768).

Almost surely, 2^{82776230101815} is an apocalyptic number.

82776230101815 is a deficient number, since it is larger than the sum of its proper divisors (52483652278473).

82776230101815 is a wasteful number, since it uses less digits than its factorization.

82776230101815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117413092398.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 82776230101815 in words is "eighty-two trillion, seven hundred seventy-six billion, two hundred thirty million, one hundred one thousand, eight hundred fifteen".