2666893754 has 16 divisors (see below), whose sum is σ = 4604712000. Its totient is φ = 1134730944.

The previous prime is 2666893741. The next prime is 2666893781. The reversal of 2666893754 is 4573986662.

It is a happy number.

It is a super-2 number, since 2×2666893754² = 14224644590248425032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666893754.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683279 + ... + 687170.

It is an arithmetic number, because the mean of its divisors is an integer number (287794500).

Almost surely, 2^2666893754 is an apocalyptic number.

2666893754 is a deficient number, since it is larger than the sum of its proper divisors (1937818246).

2666893754 is a wasteful number, since it uses less digits than its factorization.

2666893754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370597.

The product of its digits is 13063680, while the sum is 56.

The square root of 2666893754 is about 51641.9766662741. The cubic root of 2666893754 is about 1386.7619109747.

The spelling of 2666893754 in words is "two billion, six hundred sixty-six million, eight hundred ninety-three thousand, seven hundred fifty-four".