2117380263145 has 72 divisors (see below), whose sum is σ = 3140940027456. Its totient is φ = 1366006795776.

The previous prime is 2117380263133. The next prime is 2117380263181. The reversal of 2117380263145 is 5413620837112.

It is a happy number.

It is not a de Polignac number, because 2117380263145 - 2⁹ = 2117380262633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 338940412 + ... + 338946658.

It is an arithmetic number, because the mean of its divisors is an integer number (43624167048).

Almost surely, 2^{2117380263145} is an apocalyptic number.

It is an amenable number.

2117380263145 is a deficient number, since it is larger than the sum of its proper divisors (1023559764311).

2117380263145 is a wasteful number, since it uses less digits than its factorization.

2117380263145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11087 (or 11063 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 2117380263145 in words is "two trillion, one hundred seventeen billion, three hundred eighty million, two hundred sixty-three thousand, one hundred forty-five".