118777851 has 6 divisors (see below), whose sum is σ = 171568020. Its totient is φ = 79185228.

The previous prime is 118777847. The next prime is 118777859. The reversal of 118777851 is 158777811.

It is not a de Polignac number, because 118777851 - 2² = 118777847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118777797 and 118777806.

It is not an unprimeable number, because it can be changed into a prime (118777859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6598761 + ... + 6598778.

It is an arithmetic number, because the mean of its divisors is an integer number (28594670).

Almost surely, 2^118777851 is an apocalyptic number.

118777851 is a deficient number, since it is larger than the sum of its proper divisors (52790169).

118777851 is a wasteful number, since it uses less digits than its factorization.

118777851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13197545 (or 13197542 counting only the distinct ones).

The product of its digits is 109760, while the sum is 45.

The square root of 118777851 is about 10898.5251754538. The cubic root of 118777851 is about 491.5622097093.

The spelling of 118777851 in words is "one hundred eighteen million, seven hundred seventy-seven thousand, eight hundred fifty-one".