103889537761 has 3 divisors (see below), whose sum is σ = 103889860081. Its totient is φ = 103889215442.

The previous prime is 103889537669. The next prime is 103889537783. The reversal of 103889537761 is 167735988301.

The square root of 103889537761 is 322319.

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 is not a de Polignac number, because 103889537761 - 2¹¹ = 103889535713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103889537696 and 103889537705.

It is not an unprimeable number, because it can be changed into a prime (103889537161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 161160 + ... + 483478.

Almost surely, 2^103889537761 is an apocalyptic number.

103889537761 is the 322319-th square number.

103889537761 is the 161160-th centered octagonal number.

It is an amenable number.

103889537761 is a deficient number, since it is larger than the sum of its proper divisors (322320).

103889537761 is an frugal number, since it uses more digits than its factorization.

103889537761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644638 (or 322319 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 103889537761 in words is "one hundred three billion, eight hundred eighty-nine million, five hundred thirty-seven thousand, seven hundred sixty-one".