867633240771 has 60 divisors (see below), whose sum is σ = 1499613330600. Its totient is φ = 498162519360.

The previous prime is 867633240751. The next prime is 867633240781. The reversal of 867633240771 is 177042336768.

867633240771 is a `hidden beast` number, since 86 + 7 + 63 + 32 + 407 + 71 = 666.

It is not a de Polignac number, because 867633240771 - 2²⁶ = 867566131907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867633240751) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2143386 + ... + 2515823.

It is an arithmetic number, because the mean of its divisors is an integer number (24993555510).

Almost surely, 2^867633240771 is an apocalyptic number.

867633240771 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

867633240771 is a deficient number, since it is larger than the sum of its proper divisors (631980089829).

867633240771 is a wasteful number, since it uses less digits than its factorization.

867633240771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659262 (or 4659242 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 867633240771 in words is "eight hundred sixty-seven billion, six hundred thirty-three million, two hundred forty thousand, seven hundred seventy-one".