61115110027 has 2 divisors, whose sum is σ = 61115110028. Its totient is φ = 61115110026.

The previous prime is 61115110019. The next prime is 61115110033. The reversal of 61115110027 is 72001151116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61115110027 - 2³ = 61115110019 is a prime.

It is a super-2 number, since 2×61115110027² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61115109983 and 61115110010.

It is not a weakly prime, because it can be changed into another prime (61115110087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30557555013 + 30557555014.

It is an arithmetic number, because the mean of its divisors is an integer number (30557555014).

Almost surely, 2^61115110027 is an apocalyptic number.

61115110027 is a deficient number, since it is larger than the sum of its proper divisors (1).

61115110027 is an equidigital number, since it uses as much as digits as its factorization.

61115110027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 25.

The spelling of 61115110027 in words is "sixty-one billion, one hundred fifteen million, one hundred ten thousand, twenty-seven".