2138855072711 has 16 divisors (see below), whose sum is σ = 2447595022080. Its totient is φ = 1830913580160.

The previous prime is 2138855072681. The next prime is 2138855072729. The reversal of 2138855072711 is 1172705588312.

It is not a de Polignac number, because 2138855072711 - 2³⁰ = 2137781330887 is a prime.

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 2138855072711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138855072911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23311556 + ... + 23403126.

It is an arithmetic number, because the mean of its divisors is an integer number (152974688880).

Almost surely, 2^{2138855072711} is an apocalyptic number.

2138855072711 is a deficient number, since it is larger than the sum of its proper divisors (308739949369).

2138855072711 is a wasteful number, since it uses less digits than its factorization.

2138855072711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95894.

The product of its (nonzero) digits is 940800, while the sum is 50.

The spelling of 2138855072711 in words is "two trillion, one hundred thirty-eight billion, eight hundred fifty-five million, seventy-two thousand, seven hundred eleven".