27861052329045 has 54 divisors (see below), whose sum is σ = 52293916040418. Its totient is φ = 13715983764288.

The previous prime is 27861052329041. The next prime is 27861052329113. The reversal of 27861052329045 is 54092325016872.

27861052329045 is a `hidden beast` number, since 2 + 7 + 86 + 10 + 523 + 29 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 131886638244 + 27729165690801 = 363162^2 + 5265849^2 .

It is not a de Polignac number, because 27861052329045 - 2² = 27861052329041 is a prime.

It is a super-2 number, since 2×27861052329045² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27861052328982 and 27861052329000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27861052329041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 460277572 + ... + 460338098.

It is a 1-persistent number, because it is pandigital, but 2⋅27861052329045 = 55722104658090 is not.

Almost surely, 2^{27861052329045} is an apocalyptic number.

It is an amenable number.

27861052329045 is a deficient number, since it is larger than the sum of its proper divisors (24432863711373).

27861052329045 is an frugal number, since it uses more digits than its factorization.

27861052329045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121091 (or 60548 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 27861052329045 in words is "twenty-seven trillion, eight hundred sixty-one billion, fifty-two million, three hundred twenty-nine thousand, forty-five".