93919373821 has 32 divisors (see below), whose sum is σ = 118034558208. Its totient is φ = 72746519040.

The previous prime is 93919373819. The next prime is 93919373827. The reversal of 93919373821 is 12837391939.

It is not a de Polignac number, because 93919373821 - 2¹ = 93919373819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93919373827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2182806 + ... + 2225416.

It is an arithmetic number, because the mean of its divisors is an integer number (3688579944).

Almost surely, 2^93919373821 is an apocalyptic number.

93919373821 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

93919373821 is a deficient number, since it is larger than the sum of its proper divisors (24115184387).

93919373821 is a wasteful number, since it uses less digits than its factorization.

93919373821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43141.

The product of its digits is 2204496, while the sum is 55.

The spelling of 93919373821 in words is "ninety-three billion, nine hundred nineteen million, three hundred seventy-three thousand, eight hundred twenty-one".