27950352489 has 12 divisors (see below), whose sum is σ = 40549034500. Its totient is φ = 18552197664.

The previous prime is 27950352457. The next prime is 27950352499. The reversal of 27950352489 is 98425305972.

27950352489 is a `hidden beast` number, since 2 + 7 + 9 + 503 + 52 + 4 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15324459264 + 12625893225 = 123792^2 + 112365^2 .

It is not a de Polignac number, because 27950352489 - 2⁵ = 27950352457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27950352499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6778714 + ... + 6782835.

Almost surely, 2^27950352489 is an apocalyptic number.

It is an amenable number.

27950352489 is a deficient number, since it is larger than the sum of its proper divisors (12598682011).

27950352489 is a wasteful number, since it uses less digits than its factorization.

27950352489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13561784 (or 13561781 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 27950352489 in words is "twenty-seven billion, nine hundred fifty million, three hundred fifty-two thousand, four hundred eighty-nine".