2774718856 has 32 divisors (see below), whose sum is σ = 6403199040. Its totient is φ = 1097690688.

The previous prime is 2774718823. The next prime is 2774718871. The reversal of 2774718856 is 6588174772.

It is a junction number, because it is equal to n+sod(n) for n = 2774718797 and 2774718806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904986 + ... + 1906441.

It is an arithmetic number, because the mean of its divisors is an integer number (200099970).

Almost surely, 2^2774718856 is an apocalyptic number.

2774718856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2774718856 is an abundant number, since it is smaller than the sum of its proper divisors (3628480184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2774718856 is a wasteful number, since it uses less digits than its factorization.

2774718856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811453 (or 3811449 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 55.

The square root of 2774718856 is about 52675.6001959161. The cubic root of 2774718856 is about 1405.2049204027.

The spelling of 2774718856 in words is "two billion, seven hundred seventy-four million, seven hundred eighteen thousand, eight hundred fifty-six".