118436940437 has 2 divisors, whose sum is σ = 118436940438. Its totient is φ = 118436940436.

The previous prime is 118436940431. The next prime is 118436940463. The reversal of 118436940437 is 734049634811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98501194801 + 19935745636 = 313849^2 + 141194^2 .

It is a cyclic number.

It is not a de Polignac number, because 118436940437 - 2⁶ = 118436940373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118436940431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59218470218 + 59218470219.

It is an arithmetic number, because the mean of its divisors is an integer number (59218470219).

Almost surely, 2^118436940437 is an apocalyptic number.

It is an amenable number.

118436940437 is a deficient number, since it is larger than the sum of its proper divisors (1).

118436940437 is an equidigital number, since it uses as much as digits as its factorization.

118436940437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 118436940437 in words is "one hundred eighteen billion, four hundred thirty-six million, nine hundred forty thousand, four hundred thirty-seven".