27491830101 has 12 divisors (see below), whose sum is σ = 39719485260. Its totient is φ = 18323703360.

The previous prime is 27491830087. The next prime is 27491830111. The reversal of 27491830101 is 10103819472.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5765364900 + 21726465201 = 75930^2 + 147399^2 .

It is not a de Polignac number, because 27491830101 - 2¹³ = 27491821909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27491830111) 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, 306730 + ... + 386091.

It is an arithmetic number, because the mean of its divisors is an integer number (3309957105).

Almost surely, 2^27491830101 is an apocalyptic number.

It is an amenable number.

27491830101 is a deficient number, since it is larger than the sum of its proper divisors (12227655159).

27491830101 is a wasteful number, since it uses less digits than its factorization.

27491830101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697236 (or 697233 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 27491830101 in words is "twenty-seven billion, four hundred ninety-one million, eight hundred thirty thousand, one hundred one".