1873286464 has 42 divisors (see below), whose sum is σ = 4324216650. Its totient is φ = 802835712.

The previous prime is 1873286461. The next prime is 1873286483. The reversal of 1873286464 is 4646823781.

It can be written as a sum of positive squares in only one way, i.e., 948640000 + 924646464 = 30800^2 + 30408^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873286461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295539 + ... + 301810.

Almost surely, 2^1873286464 is an apocalyptic number.

1873286464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1873286464 is an abundant number, since it is smaller than the sum of its proper divisors (2450930186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1873286464 is an equidigital number, since it uses as much as digits as its factorization.

1873286464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597375 (or 597358 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The square root of 1873286464 is about 43281.4794571535. The cubic root of 1873286464 is about 1232.7302832834.

The spelling of 1873286464 in words is "one billion, eight hundred seventy-three million, two hundred eighty-six thousand, four hundred sixty-four".