1612803887253 has 48 divisors (see below), whose sum is σ = 2530396377600. Its totient is φ = 983989036800.

The previous prime is 1612803887251. The next prime is 1612803887327. The reversal of 1612803887253 is 3527883082161.

1612803887253 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 8 + 0 + 388 + 7 + 253 = 666.

It is not a de Polignac number, because 1612803887253 - 2¹ = 1612803887251 is a prime.

It is a super-2 number, since 2×1612803887253² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1612803887253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612803887251) 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 47 ways as a sum of consecutive naturals, for example, 6419268 + ... + 6665778.

It is an arithmetic number, because the mean of its divisors is an integer number (52716591200).

Almost surely, 2^{1612803887253} is an apocalyptic number.

1612803887253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1612803887253 is a deficient number, since it is larger than the sum of its proper divisors (917592490347).

1612803887253 is a wasteful number, since it uses less digits than its factorization.

1612803887253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247010 (or 247007 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 1612803887253 in words is "one trillion, six hundred twelve billion, eight hundred three million, eight hundred eighty-seven thousand, two hundred fifty-three".