1872684745 has 8 divisors (see below), whose sum is σ = 2365496640. Its totient is φ = 1419297840.

The previous prime is 1872684743. The next prime is 1872684757. The reversal of 1872684745 is 5474862781.

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

It is not a de Polignac number, because 1872684745 - 2¹ = 1872684743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1872684692 and 1872684701.

It is not an unprimeable number, because it can be changed into a prime (1872684743) 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, 9856141 + ... + 9856330.

It is an arithmetic number, because the mean of its divisors is an integer number (295687080).

Almost surely, 2^1872684745 is an apocalyptic number.

It is an amenable number.

1872684745 is a deficient number, since it is larger than the sum of its proper divisors (492811895).

1872684745 is a wasteful number, since it uses less digits than its factorization.

1872684745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19712495.

The product of its digits is 3010560, while the sum is 52.

The square root of 1872684745 is about 43274.5276692883. The cubic root of 1872684745 is about 1232.5982805738.

The spelling of 1872684745 in words is "one billion, eight hundred seventy-two million, six hundred eighty-four thousand, seven hundred forty-five".