2111039876450 has 18 divisors (see below), whose sum is σ = 3926553279651. Its totient is φ = 844411841040.

The previous prime is 2111039876447. The next prime is 2111039876453. The reversal of 2111039876450 is 546789301112.

It is an interprime number because it is at equal distance from previous prime (2111039876447) and next prime (2111039876453).

It can be written as a sum of positive squares in 5 ways, for example, as 1623669738289 + 487370138161 = 1274233^2 + 698119^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1027385.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111039876395 and 2111039876404.

It is not an unprimeable number, because it can be changed into a prime (2111039876453) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10171112 + ... + 10376588.

It is a 1-persistent number, because it is pandigital, but 2⋅2111039876450 = 4222079752900 is not.

Almost surely, 2^{2111039876450} is an apocalyptic number.

2111039876450 is a deficient number, since it is larger than the sum of its proper divisors (1815513403201).

2111039876450 is an frugal number, since it uses more digits than its factorization.

2111039876450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410966 (or 205484 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 2111039876450 in words is "two trillion, one hundred eleven billion, thirty-nine million, eight hundred seventy-six thousand, four hundred fifty".