4006145765 has 8 divisors (see below), whose sum is σ = 4807844640. Its totient is φ = 3204603472.

The previous prime is 4006145743. The next prime is 4006145789. The reversal of 4006145765 is 5675416004.

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 4006145765 - 2⁸ = 4006145509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27446 + ... + 93624.

It is an arithmetic number, because the mean of its divisors is an integer number (600980580).

Almost surely, 2^4006145765 is an apocalyptic number.

It is an amenable number.

4006145765 is a deficient number, since it is larger than the sum of its proper divisors (801698875).

4006145765 is a wasteful number, since it uses less digits than its factorization.

4006145765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78291.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 4006145765 is about 63294.1210935107. The cubic root of 4006145765 is about 1588.2136187753.

The spelling of 4006145765 in words is "four billion, six million, one hundred forty-five thousand, seven hundred sixty-five".