27953000749 has 2 divisors, whose sum is σ = 27953000750. Its totient is φ = 27953000748.

The previous prime is 27953000743. The next prime is 27953000767. The reversal of 27953000749 is 94700035972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21254724100 + 6698276649 = 145790^2 + 81843^2 .

It is a cyclic number.

It is not a de Polignac number, because 27953000749 - 2²¹ = 27950903597 is a prime.

It is a super-2 number, since 2×27953000749² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27953000699 and 27953000708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27953000743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13976500374 + 13976500375.

It is an arithmetic number, because the mean of its divisors is an integer number (13976500375).

Almost surely, 2^27953000749 is an apocalyptic number.

It is an amenable number.

27953000749 is a deficient number, since it is larger than the sum of its proper divisors (1).

27953000749 is an equidigital number, since it uses as much as digits as its factorization.

27953000749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 27953000749 in words is "twenty-seven billion, nine hundred fifty-three million, seven hundred forty-nine", and thus it is an aban number.