1953860634133 has 2 divisors, whose sum is σ = 1953860634134. Its totient is φ = 1953860634132.

The previous prime is 1953860634113. The next prime is 1953860634269. The reversal of 1953860634133 is 3314360683591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1225488852324 + 728371781809 = 1107018^2 + 853447^2 .

It is a cyclic number.

It is not a de Polignac number, because 1953860634133 - 2²⁹ = 1953323763221 is a prime.

It is a super-2 number, since 2×1953860634133² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1953860634113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976930317066 + 976930317067.

It is an arithmetic number, because the mean of its divisors is an integer number (976930317067).

Almost surely, 2^{1953860634133} is an apocalyptic number.

It is an amenable number.

1953860634133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1953860634133 is an equidigital number, since it uses as much as digits as its factorization.

1953860634133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 1953860634133 in words is "one trillion, nine hundred fifty-three billion, eight hundred sixty million, six hundred thirty-four thousand, one hundred thirty-three".