6356949877 has 4 divisors (see below), whose sum is σ = 6357249036. Its totient is φ = 6356650720.

The previous prime is 6356949803. The next prime is 6356949881. The reversal of 6356949877 is 7789496536.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 258277041 + 6098672836 = 16071^2 + 78094^2 .

It is a cyclic number.

It is not a de Polignac number, because 6356949877 - 2¹¹ = 6356947829 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 (6356949887) 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, 115048 + ... + 161089.

It is an arithmetic number, because the mean of its divisors is an integer number (1589312259).

Almost surely, 2^6356949877 is an apocalyptic number.

It is an amenable number.

6356949877 is a deficient number, since it is larger than the sum of its proper divisors (299159).

6356949877 is a wasteful number, since it uses less digits than its factorization.

6356949877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299158.

The product of its digits is 68584320, while the sum is 64.

The square root of 6356949877 is about 79730.4827340209. The cubic root of 6356949877 is about 1852.4632274155.

The spelling of 6356949877 in words is "six billion, three hundred fifty-six million, nine hundred forty-nine thousand, eight hundred seventy-seven".