27149416440 has 64 divisors (see below), whose sum is σ = 81466020000. Its totient is φ = 7238264832.

The previous prime is 27149416433. The next prime is 27149416471. The reversal of 27149416440 is 4461494172.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27149416392 and 27149416401.

It is a congruent number.

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, 591436 + ... + 635684.

Almost surely, 2^27149416440 is an apocalyptic number.

27149416440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27149416440 is an abundant number, since it is smaller than the sum of its proper divisors (54316603560).

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

27149416440 is a wasteful number, since it uses less digits than its factorization.

27149416440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49376 (or 49372 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

It can be divided in two parts, 271 and 49416440, that added together give a triangular number (49416711 = T₉₉₄₁).

The spelling of 27149416440 in words is "twenty-seven billion, one hundred forty-nine million, four hundred sixteen thousand, four hundred forty".