27947576340 has 48 divisors (see below), whose sum is σ = 86948016960. Its totient is φ = 7452686880.

The previous prime is 27947576339. The next prime is 27947576357. The reversal of 27947576340 is 4367574972.

27947576340 is a `hidden beast` number, since 2 + 79 + 475 + 7 + 63 + 40 = 666.

It is a super-3 number, since 3×27947576340³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 25876846 + ... + 25877925.

It is an arithmetic number, because the mean of its divisors is an integer number (1811417020).

Almost surely, 2^27947576340 is an apocalyptic number.

27947576340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27947576340 is an abundant number, since it is smaller than the sum of its proper divisors (59000440620).

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

27947576340 is a wasteful number, since it uses less digits than its factorization.

27947576340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51754789 (or 51754781 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 27947576340 in words is "twenty-seven billion, nine hundred forty-seven million, five hundred seventy-six thousand, three hundred forty".