17946853057 has 16 divisors (see below), whose sum is σ = 21806288640. Its totient is φ = 14436556992.

The previous prime is 17946853051. The next prime is 17946853073. The reversal of 17946853057 is 75035864971.

It is a cyclic number.

It is not a de Polignac number, because 17946853057 - 2³ = 17946853049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17946852989 and 17946853007.

It is not an unprimeable number, because it can be changed into a prime (17946853051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043082 + ... + 1060147.

It is an arithmetic number, because the mean of its divisors is an integer number (1362893040).

Almost surely, 2^17946853057 is an apocalyptic number.

It is an amenable number.

17946853057 is a deficient number, since it is larger than the sum of its proper divisors (3859435583).

17946853057 is a wasteful number, since it uses less digits than its factorization.

17946853057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103312.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 17946853057 in words is "seventeen billion, nine hundred forty-six million, eight hundred fifty-three thousand, fifty-seven".