27150349478 has 32 divisors (see below), whose sum is σ = 49468823040. Its totient is φ = 10916415360.

The previous prime is 27150349469. The next prime is 27150349493. The reversal of 27150349478 is 87494305172.

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, 468083 + ... + 522878.

It is an arithmetic number, because the mean of its divisors is an integer number (1545900720).

Almost surely, 2^27150349478 is an apocalyptic number.

27150349478 is a deficient number, since it is larger than the sum of its proper divisors (22318473562).

27150349478 is a wasteful number, since it uses less digits than its factorization.

27150349478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991092.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 27150349478 in words is "twenty-seven billion, one hundred fifty million, three hundred forty-nine thousand, four hundred seventy-eight".