1873099493 has 6 divisors (see below), whose sum is σ = 1899857862. Its totient is φ = 1846712840.

The previous prime is 1873099469. The next prime is 1873099499. The reversal of 1873099493 is 3949903781.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1713380449 + 159719044 = 41393^2 + 12638^2 .

It is not a de Polignac number, because 1873099493 - 2¹² = 1873095397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873099499) 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 5 ways as a sum of consecutive naturals, for example, 180746 + ... + 190827.

It is an arithmetic number, because the mean of its divisors is an integer number (316642977).

Almost surely, 2^1873099493 is an apocalyptic number.

It is an amenable number.

1873099493 is a deficient number, since it is larger than the sum of its proper divisors (26758369).

1873099493 is an frugal number, since it uses more digits than its factorization.

1873099493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371715 (or 371644 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 1873099493 is about 43279.3194609157. The cubic root of 1873099493 is about 1232.6892693601.

The spelling of 1873099493 in words is "one billion, eight hundred seventy-three million, ninety-nine thousand, four hundred ninety-three".