40728452005 has 8 divisors (see below), whose sum is σ = 48876724512. Its totient is φ = 32581040208.

The previous prime is 40728451931. The next prime is 40728452021. The reversal of 40728452005 is 50025482704.

It is a happy number.

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 40728452005 - 2²¹ = 40726354853 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 7 ways as a sum of consecutive naturals, for example, 106039 + ... + 304468.

It is an arithmetic number, because the mean of its divisors is an integer number (6109590564).

Almost surely, 2^40728452005 is an apocalyptic number.

It is an amenable number.

40728452005 is a deficient number, since it is larger than the sum of its proper divisors (8148272507).

40728452005 is a wasteful number, since it uses less digits than its factorization.

40728452005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430355.

The product of its (nonzero) digits is 89600, while the sum is 37.

The spelling of 40728452005 in words is "forty billion, seven hundred twenty-eight million, four hundred fifty-two thousand, five".