27394977860 has 48 divisors (see below), whose sum is σ = 61237814400. Its totient is φ = 10264598784.

The previous prime is 27394977823. The next prime is 27394977893. The reversal of 27394977860 is 6877949372.

It is a junction number, because it is equal to n+sod(n) for n = 27394977793 and 27394977802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371192 + ... + 438831.

It is an arithmetic number, because the mean of its divisors is an integer number (1275787800).

Almost surely, 2^27394977860 is an apocalyptic number.

27394977860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27394977860 is an abundant number, since it is smaller than the sum of its proper divisors (33842836540).

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

27394977860 is a wasteful number, since it uses less digits than its factorization.

27394977860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810140 (or 810138 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 27394977860 in words is "twenty-seven billion, three hundred ninety-four million, nine hundred seventy-seven thousand, eight hundred sixty".