40578434057 has 8 divisors (see below), whose sum is σ = 46533633216. Its totient is φ = 34662804912.

The previous prime is 40578434051. The next prime is 40578434093. The reversal of 40578434057 is 75043487504.

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 40578434057 - 2⁴ = 40578434041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40578434051) 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, 9890303 + ... + 9894404.

It is an arithmetic number, because the mean of its divisors is an integer number (5816704152).

Almost surely, 2^40578434057 is an apocalyptic number.

It is an amenable number.

40578434057 is a deficient number, since it is larger than the sum of its proper divisors (5955199159).

40578434057 is a wasteful number, since it uses less digits than its factorization.

40578434057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19785007.

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 40578434057 in words is "forty billion, five hundred seventy-eight million, four hundred thirty-four thousand, fifty-seven".