6776715257 has 8 divisors (see below), whose sum is σ = 7453278336. Its totient is φ = 6122334672.

The previous prime is 6776715241. The next prime is 6776715269. The reversal of 6776715257 is 7525176776.

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 6776715257 - 2⁴ = 6776715241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6776715199 and 6776715208.

It is not an unprimeable number, because it can be changed into a prime (6776715277) 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, 5544983 + ... + 5546204.

It is an arithmetic number, because the mean of its divisors is an integer number (931659792).

Almost surely, 2^6776715257 is an apocalyptic number.

It is an amenable number.

6776715257 is a deficient number, since it is larger than the sum of its proper divisors (676563079).

6776715257 is a wasteful number, since it uses less digits than its factorization.

6776715257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11091247.

The product of its digits is 4321800, while the sum is 53.

The square root of 6776715257 is about 82320.8069506124. The cubic root of 6776715257 is about 1892.3715605092.

The spelling of 6776715257 in words is "six billion, seven hundred seventy-six million, seven hundred fifteen thousand, two hundred fifty-seven".