2142793666 has 64 divisors (see below), whose sum is σ = 3841044480. Its totient is φ = 887008320.

The previous prime is 2142793651. The next prime is 2142793693. The reversal of 2142793666 is 6663972412.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1169371 + ... + 1171201.

It is an arithmetic number, because the mean of its divisors is an integer number (60016320).

Almost surely, 2^2142793666 is an apocalyptic number.

2142793666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2142793666 is a deficient number, since it is larger than the sum of its proper divisors (1698250814).

2142793666 is a wasteful number, since it uses less digits than its factorization.

2142793666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its digits is 653184, while the sum is 46.

The square root of 2142793666 is about 46290.3193551308. The cubic root of 2142793666 is about 1289.2192591577.

The spelling of 2142793666 in words is "two billion, one hundred forty-two million, seven hundred ninety-three thousand, six hundred sixty-six".