108043554781 has 4 divisors (see below), whose sum is σ = 108044428864. Its totient is φ = 108042680700.

The previous prime is 108043554767. The next prime is 108043554799. The reversal of 108043554781 is 187455340801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 108043554781 - 2³¹ = 105896071133 is a prime.

It is a super-2 number, since 2×108043554781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108043554181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213525 + ... + 511546.

It is an arithmetic number, because the mean of its divisors is an integer number (27011107216).

Almost surely, 2^108043554781 is an apocalyptic number.

It is an amenable number.

108043554781 is a deficient number, since it is larger than the sum of its proper divisors (874083).

108043554781 is an equidigital number, since it uses as much as digits as its factorization.

108043554781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874082.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 108043554781 in words is "one hundred eight billion, forty-three million, five hundred fifty-four thousand, seven hundred eighty-one".