40428387875833 has 8 divisors (see below), whose sum is σ = 40457775342600. Its totient is φ = 40399006597248.

The previous prime is 40428387875809. The next prime is 40428387875891. The reversal of 40428387875833 is 33857878382404.

It can be written as a sum of positive squares in 4 ways, for example, as 1619823834729 + 38808564041104 = 1272723^2 + 6229652^2 .

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 40428387875833 - 2⁹ = 40428387875321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40428387875333) 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, 11564373 + ... + 14648941.

It is an arithmetic number, because the mean of its divisors is an integer number (5057221917825).

Almost surely, 2^{40428387875833} is an apocalyptic number.

It is an amenable number.

40428387875833 is a deficient number, since it is larger than the sum of its proper divisors (29387466767).

40428387875833 is a wasteful number, since it uses less digits than its factorization.

40428387875833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094091.

The product of its (nonzero) digits is 867041280, while the sum is 70.

The spelling of 40428387875833 in words is "forty trillion, four hundred twenty-eight billion, three hundred eighty-seven million, eight hundred seventy-five thousand, eight hundred thirty-three".