118531725737 has 2 divisors, whose sum is σ = 118531725738. Its totient is φ = 118531725736.

The previous prime is 118531725733. The next prime is 118531725773. The reversal of 118531725737 is 737527135811.

Together with next prime (118531725773) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107437106176 + 11094619561 = 327776^2 + 105331^2 .

It is a cyclic number.

It is not a de Polignac number, because 118531725737 - 2² = 118531725733 is a prime.

It is not a weakly prime, because it can be changed into another prime (118531725731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59265862868 + 59265862869.

It is an arithmetic number, because the mean of its divisors is an integer number (59265862869).

Almost surely, 2^118531725737 is an apocalyptic number.

It is an amenable number.

118531725737 is a deficient number, since it is larger than the sum of its proper divisors (1).

118531725737 is an equidigital number, since it uses as much as digits as its factorization.

118531725737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1234800, while the sum is 50.

The spelling of 118531725737 in words is "one hundred eighteen billion, five hundred thirty-one million, seven hundred twenty-five thousand, seven hundred thirty-seven".