1873138513 has 8 divisors (see below), whose sum is σ = 1951304960. Its totient is φ = 1796081040.

The previous prime is 1873138471. The next prime is 1873138559. The reversal of 1873138513 is 3158313781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1873138513 - 2¹³ = 1873130321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1873138213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273795 + ... + 280552.

It is an arithmetic number, because the mean of its divisors is an integer number (243913120).

Almost surely, 2^1873138513 is an apocalyptic number.

It is an amenable number.

1873138513 is a deficient number, since it is larger than the sum of its proper divisors (78166447).

1873138513 is a wasteful number, since it uses less digits than its factorization.

1873138513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554487.

The product of its digits is 60480, while the sum is 40.

The square root of 1873138513 is about 43279.7702512386. The cubic root of 1873138513 is about 1232.6978290053.

The spelling of 1873138513 in words is "one billion, eight hundred seventy-three million, one hundred thirty-eight thousand, five hundred thirteen".