1053864851218 has 4 divisors (see below), whose sum is σ = 1580797276830. Its totient is φ = 526932425608.

The previous prime is 1053864851197. The next prime is 1053864851233. The reversal of 1053864851218 is 8121584683501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 984149313849 + 69715537369 = 992043^2 + 264037^2 .

It is a super-2 number, since 2×1053864851218² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263466212803 + ... + 263466212806.

Almost surely, 2^{1053864851218} is an apocalyptic number.

1053864851218 is a deficient number, since it is larger than the sum of its proper divisors (526932425612).

1053864851218 is an equidigital number, since it uses as much as digits as its factorization.

1053864851218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526932425611.

The product of its (nonzero) digits is 1843200, while the sum is 52.

The spelling of 1053864851218 in words is "one trillion, fifty-three billion, eight hundred sixty-four million, eight hundred fifty-one thousand, two hundred eighteen".