118857389049 has 27 divisors (see below), whose sum is σ = 199724921487. Its totient is φ = 67914370944.

The previous prime is 118857389029. The next prime is 118857389051. The reversal of 118857389049 is 940983758811.

The square root of 118857389049 is 344757.

It is a perfect power (a square), and thus also a powerful number.

118857389049 is a `hidden beast` number, since 1 + 18 + 8 + 573 + 8 + 9 + 0 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29833925625 + 89023463424 = 172725^2 + 298368^2 .

It is not a de Polignac number, because 118857389049 - 2¹³ = 118857380857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (118857389029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7231689 + ... + 7248105.

Almost surely, 2^118857389049 is an apocalyptic number.

118857389049 is the 344757-th square number.

118857389049 is the 172379-th centered octagonal number.

It is an amenable number.

118857389049 is a deficient number, since it is larger than the sum of its proper divisors (80867532438).

118857389049 is an frugal number, since it uses more digits than its factorization.

118857389049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32854 (or 16427 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 63.

The spelling of 118857389049 in words is "one hundred eighteen billion, eight hundred fifty-seven million, three hundred eighty-nine thousand, forty-nine".