1053681850785 has 32 divisors (see below), whose sum is σ = 1775968128000. Its totient is φ = 531982800576.

The previous prime is 1053681850757. The next prime is 1053681850787. The reversal of 1053681850785 is 5870581863501.

It is not a de Polignac number, because 1053681850785 - 2¹² = 1053681846689 is a prime.

It is a super-2 number, since 2×1053681850785² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1053681850787) 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 31 ways as a sum of consecutive naturals, for example, 1025575 + ... + 1777404.

It is an arithmetic number, because the mean of its divisors is an integer number (55499004000).

Almost surely, 2^{1053681850785} is an apocalyptic number.

1053681850785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1053681850785 is a deficient number, since it is larger than the sum of its proper divisors (722286277215).

1053681850785 is a wasteful number, since it uses less digits than its factorization.

1053681850785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804325.

The product of its (nonzero) digits is 8064000, while the sum is 57.

The spelling of 1053681850785 in words is "one trillion, fifty-three billion, six hundred eighty-one million, eight hundred fifty thousand, seven hundred eighty-five".