93218661820 has 24 divisors (see below), whose sum is σ = 195789132000. Its totient is φ = 37281761472.

The previous prime is 93218661791. The next prime is 93218661839. The reversal of 93218661820 is 2816681239.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221175 + ... + 485134.

It is an arithmetic number, because the mean of its divisors is an integer number (8157880500).

Almost surely, 2^93218661820 is an apocalyptic number.

It is an amenable number.

93218661820 is an abundant number, since it is smaller than the sum of its proper divisors (102570470180).

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

93218661820 is a wasteful number, since it uses less digits than its factorization.

93218661820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712917 (or 712915 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 93218661820 in words is "ninety-three billion, two hundred eighteen million, six hundred sixty-one thousand, eight hundred twenty".