2142919775 has 12 divisors (see below), whose sum is σ = 2772752592. Its totient is φ = 1639799040.

The previous prime is 2142919721. The next prime is 2142919777. The reversal of 2142919775 is 5779192412.

It is not a de Polignac number, because 2142919775 - 2¹⁶ = 2142854239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142919777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1862834 + ... + 1863983.

It is an arithmetic number, because the mean of its divisors is an integer number (231062716).

Almost surely, 2^2142919775 is an apocalyptic number.

2142919775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2142919775 is a deficient number, since it is larger than the sum of its proper divisors (629832817).

2142919775 is a wasteful number, since it uses less digits than its factorization.

2142919775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726850 (or 3726845 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The square root of 2142919775 is about 46291.6814881464. The cubic root of 2142919775 is about 1289.2445499677.

The spelling of 2142919775 in words is "two billion, one hundred forty-two million, nine hundred nineteen thousand, seven hundred seventy-five".