1147721250051 has 6 divisors (see below), whose sum is σ = 1657819583420. Its totient is φ = 765147500028.

The previous prime is 1147721250043. The next prime is 1147721250083. The reversal of 1147721250051 is 1500521277411.

It is a happy number.

1147721250051 is a `hidden beast` number, since 1 + 14 + 77 + 21 + 2 + 500 + 51 = 666.

It is not a de Polignac number, because 1147721250051 - 2³ = 1147721250043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1147721249988 and 1147721250015.

It is not an unprimeable number, because it can be changed into a prime (1147721250251) 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, 63762291661 + ... + 63762291678.

Almost surely, 2^{1147721250051} is an apocalyptic number.

1147721250051 is a deficient number, since it is larger than the sum of its proper divisors (510098333369).

1147721250051 is a wasteful number, since it uses less digits than its factorization.

1147721250051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127524583345 (or 127524583342 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

The spelling of 1147721250051 in words is "one trillion, one hundred forty-seven billion, seven hundred twenty-one million, two hundred fifty thousand, fifty-one".