1845640713 has 24 divisors (see below), whose sum is σ = 2872021152. Its totient is φ = 1051190784.

The previous prime is 1845640703. The next prime is 1845640723. The reversal of 1845640713 is 3170465481.

It is an interprime number because it is at equal distance from previous prime (1845640703) and next prime (1845640723).

It is not a de Polignac number, because 1845640713 - 2¹⁷ = 1845509641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1845640703) 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 23 ways as a sum of consecutive naturals, for example, 24681 + ... + 65577.

It is an arithmetic number, because the mean of its divisors is an integer number (119667548).

Almost surely, 2^1845640713 is an apocalyptic number.

It is an amenable number.

1845640713 is a deficient number, since it is larger than the sum of its proper divisors (1026380439).

1845640713 is a wasteful number, since it uses less digits than its factorization.

1845640713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41221 (or 41214 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1845640713 is about 42960.9207652722. The cubic root of 1845640713 is about 1226.6360398764.

The spelling of 1845640713 in words is "one billion, eight hundred forty-five million, six hundred forty thousand, seven hundred thirteen".