861873528092 has 12 divisors (see below), whose sum is σ = 1522116093960. Its totient is φ = 426983215536.

The previous prime is 861873528077. The next prime is 861873528097. The reversal of 861873528092 is 290825378168.

861873528092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861873528097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988386638 + ... + 988387509.

It is an arithmetic number, because the mean of its divisors is an integer number (126843007830).

Almost surely, 2^861873528092 is an apocalyptic number.

It is an amenable number.

861873528092 is a deficient number, since it is larger than the sum of its proper divisors (660242565868).

861873528092 is a wasteful number, since it uses less digits than its factorization.

861873528092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976774260 (or 1976774258 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 861873528092 in words is "eight hundred sixty-one billion, eight hundred seventy-three million, five hundred twenty-eight thousand, ninety-two".