488630636223778 has 4 divisors (see below), whose sum is σ = 732945954335670. Its totient is φ = 244315318111888.

The previous prime is 488630636223721. The next prime is 488630636223799. The reversal of 488630636223778 is 877322636036884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 478685083750129 + 9945552473649 = 21878873^2 + 3153657^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 488630636223778.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122157659055943 + ... + 122157659055946.

Almost surely, 2^{488630636223778} is an apocalyptic number.

488630636223778 is a deficient number, since it is larger than the sum of its proper divisors (244315318111892).

488630636223778 is a wasteful number, since it uses less digits than its factorization.

488630636223778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244315318111891.

The product of its (nonzero) digits is 2341011456, while the sum is 73.

The spelling of 488630636223778 in words is "four hundred eighty-eight trillion, six hundred thirty billion, six hundred thirty-six million, two hundred twenty-three thousand, seven hundred seventy-eight".