27970493580 has 72 divisors (see below), whose sum is σ = 85683924144. Its totient is φ = 7384944000.

The previous prime is 27970493569. The next prime is 27970493609. The reversal of 27970493580 is 8539407972.

27970493580 is a `hidden beast` number, since 2 + 7 + 9 + 70 + 493 + 5 + 80 = 666.

It is a super-2 number, since 2×27970493580² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 751086 + ... + 787445.

It is an arithmetic number, because the mean of its divisors is an integer number (1190054502).

Almost surely, 2^27970493580 is an apocalyptic number.

27970493580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27970493580 is an abundant number, since it is smaller than the sum of its proper divisors (57713430564).

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

27970493580 is a wasteful number, since it uses less digits than its factorization.

27970493580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538647 (or 1538642 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 27970493580 in words is "twenty-seven billion, nine hundred seventy million, four hundred ninety-three thousand, five hundred eighty".