118477770437 has 8 divisors (see below), whose sum is σ = 127600599000. Its totient is φ = 109356249600.

The previous prime is 118477770403. The next prime is 118477770473. The reversal of 118477770437 is 734077774811.

It is a Cunningham number, because it is equal to 344206²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 17526052996 + 100951717441 = 132386^2 + 317729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118477770437 - 2¹⁸ = 118477508293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118477770487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134564 + ... + 505037.

It is an arithmetic number, because the mean of its divisors is an integer number (15950074875).

Almost surely, 2^118477770437 is an apocalyptic number.

It is an amenable number.

118477770437 is a deficient number, since it is larger than the sum of its proper divisors (9122828563).

118477770437 is a wasteful number, since it uses less digits than its factorization.

118477770437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653863.

The product of its (nonzero) digits is 6453888, while the sum is 56.

The spelling of 118477770437 in words is "one hundred eighteen billion, four hundred seventy-seven million, seven hundred seventy thousand, four hundred thirty-seven".