27470499840 has 832 divisors, whose sum is σ = 114742149120. Its totient is φ = 6104678400.

The previous prime is 27470499829. The next prime is 27470499883. The reversal of 27470499840 is 4899407472.

It is a happy number.

27470499840 is a `hidden beast` number, since 2 + 7 + 4 + 70 + 499 + 84 + 0 = 666.

It is a super-2 number, since 2×27470499840² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181923765 + ... + 181923915.

Almost surely, 2^27470499840 is an apocalyptic number.

27470499840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27470499840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57371074560).

27470499840 is an abundant number, since it is smaller than the sum of its proper divisors (87271649280).

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

27470499840 is a wasteful number, since it uses less digits than its factorization.

27470499840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

It can be divided in two parts, 274704 and 99840, that added together give a square (374544 = 612²).

The spelling of 27470499840 in words is "twenty-seven billion, four hundred seventy million, four hundred ninety-nine thousand, eight hundred forty".