40428485139 has 8 divisors (see below), whose sum is σ = 61605310720. Its totient is φ = 23101991496.

The previous prime is 40428485137. The next prime is 40428485159. The reversal of 40428485139 is 93158482404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40428485139 - 2¹ = 40428485137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40428485137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962582959 + ... + 962583000.

It is an arithmetic number, because the mean of its divisors is an integer number (7700663840).

Almost surely, 2^40428485139 is an apocalyptic number.

40428485139 is a deficient number, since it is larger than the sum of its proper divisors (21176825581).

40428485139 is a wasteful number, since it uses less digits than its factorization.

40428485139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925165969.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 40428485139 in words is "forty billion, four hundred twenty-eight million, four hundred eighty-five thousand, one hundred thirty-nine".