93769416938521 has 3 divisors (see below), whose sum is σ = 93769426621983. Its totient is φ = 93769407255060.

The previous prime is 93769416938513. The next prime is 93769416938537. The reversal of 93769416938521 is 12583961496739.

The square root of 93769416938521 is 9683461.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 92132910790921 + 1636506147600 = 9598589^2 + 1279260^2 .

It is not a de Polignac number, because 93769416938521 - 2³ = 93769416938513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93769416978521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4841731 + ... + 14525191.

It is an arithmetic number, because the mean of its divisors is an integer number (31256475540661).

Almost surely, 2^{93769416938521} is an apocalyptic number.

93769416938521 is the 9683461-st square number.

93769416938521 is the 4841731-st centered octagonal number.

It is an amenable number.

93769416938521 is a deficient number, since it is larger than the sum of its proper divisors (9683462).

93769416938521 is an frugal number, since it uses more digits than its factorization.

93769416938521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19366922 (or 9683461 counting only the distinct ones).

The product of its digits is 529079040, while the sum is 73.

The spelling of 93769416938521 in words is "ninety-three trillion, seven hundred sixty-nine billion, four hundred sixteen million, nine hundred thirty-eight thousand, five hundred twenty-one".