51488495458 has 8 divisors (see below), whose sum is σ = 77796486252. Its totient is φ = 25556333376.

The previous prime is 51488495449. The next prime is 51488495521. The reversal of 51488495458 is 85459488415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48199128849 + 3289366609 = 219543^2 + 57353^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51488495396 and 51488495405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93956835 + ... + 93957382.

Almost surely, 2^51488495458 is an apocalyptic number.

51488495458 is a deficient number, since it is larger than the sum of its proper divisors (26307990794).

51488495458 is a wasteful number, since it uses less digits than its factorization.

51488495458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187914356.

The product of its digits is 36864000, while the sum is 61.

The spelling of 51488495458 in words is "fifty-one billion, four hundred eighty-eight million, four hundred ninety-five thousand, four hundred fifty-eight".