1053373878517 has 2 divisors, whose sum is σ = 1053373878518. Its totient is φ = 1053373878516.

The previous prime is 1053373878451. The next prime is 1053373878551. The reversal of 1053373878517 is 7158783733501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1053304005636 + 69872881 = 1026306^2 + 8359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053373878517 is a prime.

It is a super-2 number, since 2×1053373878517² (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 (1053373878317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526686939258 + 526686939259.

It is an arithmetic number, because the mean of its divisors is an integer number (526686939259).

Almost surely, 2^{1053373878517} is an apocalyptic number.

It is an amenable number.

1053373878517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053373878517 is an equidigital number, since it uses as much as digits as its factorization.

1053373878517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14817600, while the sum is 58.

The spelling of 1053373878517 in words is "one trillion, fifty-three billion, three hundred seventy-three million, eight hundred seventy-eight thousand, five hundred seventeen".