1053511836391 has 24 divisors (see below), whose sum is σ = 1302070826880. Its totient is φ = 847488044592.

The previous prime is 1053511836371. The next prime is 1053511836401. The reversal of 1053511836391 is 1936381153501.

It is a happy number.

It is not a de Polignac number, because 1053511836391 - 2⁵ = 1053511836359 is a prime.

It is a super-2 number, since 2×1053511836391² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053511836371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5188195 + ... + 5387428.

It is an arithmetic number, because the mean of its divisors is an integer number (54252951120).

Almost surely, 2^{1053511836391} is an apocalyptic number.

1053511836391 is a deficient number, since it is larger than the sum of its proper divisors (248558990489).

1053511836391 is a wasteful number, since it uses less digits than its factorization.

1053511836391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10575763 (or 10575756 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

Adding to 1053511836391 its reverse (1936381153501), we get a palindrome (2989892989892).

The spelling of 1053511836391 in words is "one trillion, fifty-three billion, five hundred eleven million, eight hundred thirty-six thousand, three hundred ninety-one".