2677911857 has 2 divisors, whose sum is σ = 2677911858. Its totient is φ = 2677911856.

The previous prime is 2677911799. The next prime is 2677911911. The reversal of 2677911857 is 7581197762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1544175616 + 1133736241 = 39296^2 + 33671^2 .

It is a cyclic number.

It is not a de Polignac number, because 2677911857 - 2⁶ = 2677911793 is a prime.

It is a super-2 number, since 2×2677911857² = 14342423827722376898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2677911799 and 2677911808.

It is not a weakly prime, because it can be changed into another prime (2677911157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1338955928 + 1338955929.

It is an arithmetic number, because the mean of its divisors is an integer number (1338955929).

Almost surely, 2^2677911857 is an apocalyptic number.

It is an amenable number.

2677911857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2677911857 is an equidigital number, since it uses as much as digits as its factorization.

2677911857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 53.

The square root of 2677911857 is about 51748.5444916087. The cubic root of 2677911857 is about 1388.6690600236.

The spelling of 2677911857 in words is "two billion, six hundred seventy-seven million, nine hundred eleven thousand, eight hundred fifty-seven".