918372819202 has 4 divisors (see below), whose sum is σ = 1377559228806. Its totient is φ = 459186409600.

The previous prime is 918372819191. The next prime is 918372819239. The reversal of 918372819202 is 202918273819.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202918273819 = 61 ⋅3326529079.

It can be written as a sum of positive squares in only one way, i.e., 844470940401 + 73901878801 = 918951^2 + 271849^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 918372819202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229593204799 + ... + 229593204802.

Almost surely, 2^918372819202 is an apocalyptic number.

918372819202 is a deficient number, since it is larger than the sum of its proper divisors (459186409604).

918372819202 is a wasteful number, since it uses less digits than its factorization.

918372819202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459186409603.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 918372819202 in words is "nine hundred eighteen billion, three hundred seventy-two million, eight hundred nineteen thousand, two hundred two".