4140071645 has 16 divisors (see below), whose sum is σ = 5185959552. Its totient is φ = 3166912320.

The previous prime is 4140071569. The next prime is 4140071653. The reversal of 4140071645 is 5461700414.

It is not a de Polignac number, because 4140071645 - 2¹⁰ = 4140070621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457010 + ... + 465980.

It is an arithmetic number, because the mean of its divisors is an integer number (324122472).

Almost surely, 2^4140071645 is an apocalyptic number.

It is an amenable number.

4140071645 is a deficient number, since it is larger than the sum of its proper divisors (1045887907).

4140071645 is a wasteful number, since it uses less digits than its factorization.

4140071645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4140071645 is about 64343.3885103979. The cubic root of 4140071645 is about 1605.7180361386.

The spelling of 4140071645 in words is "four billion, one hundred forty million, seventy-one thousand, six hundred forty-five".