102044045544187 has 4 divisors (see below), whose sum is σ = 102053213109496. Its totient is φ = 102034877978880.

The previous prime is 102044045544151. The next prime is 102044045544263. The reversal of 102044045544187 is 781445540440201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102044045544187 - 2¹⁹ = 102044045019899 is a prime.

It is a super-2 number, since 2×102044045544187² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102044045544187.

It is not an unprimeable number, because it can be changed into a prime (102044045541187) 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, 4583765958 + ... + 4583788219.

It is an arithmetic number, because the mean of its divisors is an integer number (25513303277374).

Almost surely, 2^{102044045544187} is an apocalyptic number.

102044045544187 is a deficient number, since it is larger than the sum of its proper divisors (9167565309).

102044045544187 is an equidigital number, since it uses as much as digits as its factorization.

102044045544187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9167565308.

The product of its (nonzero) digits is 2867200, while the sum is 49.

Adding to 102044045544187 its reverse (781445540440201), we get a palindrome (883489585984388).

The spelling of 102044045544187 in words is "one hundred two trillion, forty-four billion, forty-five million, five hundred forty-four thousand, one hundred eighty-seven".