1873840051 has 4 divisors (see below), whose sum is σ = 1878784600. Its totient is φ = 1868895504.

The previous prime is 1873840027. The next prime is 1873840063. The reversal of 1873840051 is 1500483781.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1873840051 is a prime.

It is a super-2 number, since 2×1873840051² = 7022553073463365202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1873840091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2471706 + ... + 2472463.

It is an arithmetic number, because the mean of its divisors is an integer number (469696150).

Almost surely, 2^1873840051 is an apocalyptic number.

1873840051 is a deficient number, since it is larger than the sum of its proper divisors (4944549).

1873840051 is an equidigital number, since it uses as much as digits as its factorization.

1873840051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944548.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1873840051 is about 43287.8741797284. The cubic root of 1873840051 is about 1232.8517020237.

The spelling of 1873840051 in words is "one billion, eight hundred seventy-three million, eight hundred forty thousand, fifty-one".