2131669774 has 32 divisors (see below), whose sum is σ = 3629969280. Its totient is φ = 930712032.

The previous prime is 2131669747. The next prime is 2131669777. The reversal of 2131669774 is 4779661312.

It is a super-2 number, since 2×2131669774² = 9088032050770422152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131669777) 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, 386037 + ... + 391519.

It is an arithmetic number, because the mean of its divisors is an integer number (113436540).

Almost surely, 2^2131669774 is an apocalyptic number.

2131669774 is a deficient number, since it is larger than the sum of its proper divisors (1498299506).

2131669774 is a wasteful number, since it uses less digits than its factorization.

2131669774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304.

The product of its digits is 381024, while the sum is 46.

The square root of 2131669774 is about 46170.0094650196. The cubic root of 2131669774 is about 1286.9844781104.

The spelling of 2131669774 in words is "two billion, one hundred thirty-one million, six hundred sixty-nine thousand, seven hundred seventy-four".