1953020159969 has 2 divisors, whose sum is σ = 1953020159970. Its totient is φ = 1953020159968.

The previous prime is 1953020159947. The next prime is 1953020160017. The reversal of 1953020159969 is 9699510203591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1941318329344 + 11701830625 = 1393312^2 + 108175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1953020159969 is a prime.

It is a super-2 number, since 2×1953020159969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1953020159929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976510079984 + 976510079985.

It is an arithmetic number, because the mean of its divisors is an integer number (976510079985).

Almost surely, 2^{1953020159969} is an apocalyptic number.

It is an amenable number.

1953020159969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1953020159969 is an equidigital number, since it uses as much as digits as its factorization.

1953020159969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5904900, while the sum is 59.

The spelling of 1953020159969 in words is "one trillion, nine hundred fifty-three billion, twenty million, one hundred fifty-nine thousand, nine hundred sixty-nine".