40406853607 has 4 divisors (see below), whose sum is σ = 40674448816. Its totient is φ = 40139258400.

The previous prime is 40406853581. The next prime is 40406853659. The reversal of 40406853607 is 70635860404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40406853607 - 2³¹ = 38259369959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40406823607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133797378 + ... + 133797679.

It is an arithmetic number, because the mean of its divisors is an integer number (10168612204).

Almost surely, 2^40406853607 is an apocalyptic number.

40406853607 is a deficient number, since it is larger than the sum of its proper divisors (267595209).

40406853607 is a wasteful number, since it uses less digits than its factorization.

40406853607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267595208.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 40406853607 in words is "forty billion, four hundred six million, eight hundred fifty-three thousand, six hundred seven".