2111372657751 has 16 divisors (see below), whose sum is σ = 3228944681984. Its totient is φ = 1202143067424.

The previous prime is 2111372657749. The next prime is 2111372657783. The reversal of 2111372657751 is 1577562731112.

It is not a de Polignac number, because 2111372657751 - 2¹ = 2111372657749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111372657751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111372657551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181477135 + ... + 181488768.

It is an arithmetic number, because the mean of its divisors is an integer number (201809042624).

Almost surely, 2^{2111372657751} is an apocalyptic number.

2111372657751 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2111372657751 is a deficient number, since it is larger than the sum of its proper divisors (1117572024233).

2111372657751 is a wasteful number, since it uses less digits than its factorization.

2111372657751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362966190.

The product of its digits is 617400, while the sum is 48.

The spelling of 2111372657751 in words is "two trillion, one hundred eleven billion, three hundred seventy-two million, six hundred fifty-seven thousand, seven hundred fifty-one".