212957232571860 has 96 divisors (see below), whose sum is σ = 711091976620032. Its totient is φ = 46559593703040.

The previous prime is 212957232571801. The next prime is 212957232571873. The reversal of 212957232571860 is 68175232759212.

It is a happy number.

212957232571860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212957232571860³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 212957232571794 and 212957232571803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11022621426 + ... + 11022640745.

It is an arithmetic number, because the mean of its divisors is an integer number (7407208089792).

Almost surely, 2^{212957232571860} is an apocalyptic number.

212957232571860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212957232571860 is an abundant number, since it is smaller than the sum of its proper divisors (498134744048172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212957232571860 is a wasteful number, since it uses less digits than its factorization.

212957232571860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22045262213 (or 22045262211 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 212957232571860 in words is "two hundred twelve trillion, nine hundred fifty-seven billion, two hundred thirty-two million, five hundred seventy-one thousand, eight hundred sixty".