2671891977 has 8 divisors (see below), whose sum is σ = 3649413600. Its totient is φ = 1737815840.

The previous prime is 2671891973. The next prime is 2671891987. The reversal of 2671891977 is 7791981762.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2671891977 - 2² = 2671891973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2671891973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10861227 + ... + 10861472.

It is an arithmetic number, because the mean of its divisors is an integer number (456176700).

Almost surely, 2^2671891977 is an apocalyptic number.

It is an amenable number.

2671891977 is a deficient number, since it is larger than the sum of its proper divisors (977521623).

2671891977 is a wasteful number, since it uses less digits than its factorization.

2671891977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21722743.

The product of its digits is 2667168, while the sum is 57.

The square root of 2671891977 is about 51690.3470388814. The cubic root of 2671891977 is about 1387.6277146947.

The spelling of 2671891977 in words is "two billion, six hundred seventy-one million, eight hundred ninety-one thousand, nine hundred seventy-seven".