27779040275 has 24 divisors (see below), whose sum is σ = 39390541344. Its totient is φ = 19037030400.

The previous prime is 27779040253. The next prime is 27779040313. The reversal of 27779040275 is 57204097772.

It is a happy number.

It is not a de Polignac number, because 27779040275 - 2¹² = 27779036179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 249395 + ... + 343155.

It is an arithmetic number, because the mean of its divisors is an integer number (1641272556).

Almost surely, 2^27779040275 is an apocalyptic number.

27779040275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27779040275 is a deficient number, since it is larger than the sum of its proper divisors (11611501069).

27779040275 is a wasteful number, since it uses less digits than its factorization.

27779040275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95471 (or 95466 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 27779040275 in words is "twenty-seven billion, seven hundred seventy-nine million, forty thousand, two hundred seventy-five".