27553478490 has 48 divisors (see below), whose sum is σ = 72853279200. Its totient is φ = 7223057376.

The previous prime is 27553478489. The next prime is 27553478527. The reversal of 27553478490 is 9487435572.

It is a happy number.

27553478490 is a `hidden beast` number, since 2 + 7 + 55 + 34 + 78 + 490 = 666.

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, 2589180 + ... + 2599799.

It is an arithmetic number, because the mean of its divisors is an integer number (1517776650).

Almost surely, 2^27553478490 is an apocalyptic number.

27553478490 is an abundant number, since it is smaller than the sum of its proper divisors (45299800710).

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

27553478490 is a wasteful number, since it uses less digits than its factorization.

27553478490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189051 (or 5189048 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 27553478490 in words is "twenty-seven billion, five hundred fifty-three million, four hundred seventy-eight thousand, four hundred ninety".