2666671428 has 24 divisors (see below), whose sum is σ = 6492765888. Its totient is φ = 850242976.

The previous prime is 2666671333. The next prime is 2666671499. The reversal of 2666671428 is 8241766662.

2666671428 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2666671428² = 14222273009823118368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830651 + ... + 4831202.

It is an arithmetic number, because the mean of its divisors is an integer number (270531912).

Almost surely, 2^2666671428 is an apocalyptic number.

It is an amenable number.

2666671428 is an abundant number, since it is smaller than the sum of its proper divisors (3826094460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666671428 is a wasteful number, since it uses less digits than its factorization.

2666671428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9661883 (or 9661881 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 2666671428 is about 51639.8240508234. The cubic root of 2666671428 is about 1386.7233740318.

The spelling of 2666671428 in words is "two billion, six hundred sixty-six million, six hundred seventy-one thousand, four hundred twenty-eight".