6400366277 has 4 divisors (see below), whose sum is σ = 6737227680. Its totient is φ = 6063504876.

The previous prime is 6400366267. The next prime is 6400366279. The reversal of 6400366277 is 7726630046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7726630046 = 2 ⋅3863315023.

It is a cyclic number.

It is not a de Polignac number, because 6400366277 - 2²² = 6396171973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400366279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168430673 + ... + 168430710.

It is an arithmetic number, because the mean of its divisors is an integer number (1684306920).

Almost surely, 2^6400366277 is an apocalyptic number.

It is an amenable number.

6400366277 is a deficient number, since it is larger than the sum of its proper divisors (336861403).

6400366277 is a wasteful number, since it uses less digits than its factorization.

6400366277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336861402.

The product of its (nonzero) digits is 254016, while the sum is 41.

The square root of 6400366277 is about 80002.2891984973. The cubic root of 6400366277 is about 1856.6709516701.

The spelling of 6400366277 in words is "six billion, four hundred million, three hundred sixty-six thousand, two hundred seventy-seven".