40472444477 has 16 divisors (see below), whose sum is σ = 43232154240. Its totient is φ = 37796818752.

The previous prime is 40472444447. The next prime is 40472444491. The reversal of 40472444477 is 77444427404.

It is a cyclic number.

It is not a de Polignac number, because 40472444477 - 2³⁰ = 39398702653 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40472444437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2877899 + ... + 2891927.

It is an arithmetic number, because the mean of its divisors is an integer number (2702009640).

Almost surely, 2^40472444477 is an apocalyptic number.

It is an amenable number.

40472444477 is a deficient number, since it is larger than the sum of its proper divisors (2759709763).

40472444477 is a wasteful number, since it uses less digits than its factorization.

40472444477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17012.

The product of its (nonzero) digits is 2809856, while the sum is 47.

The spelling of 40472444477 in words is "forty billion, four hundred seventy-two million, four hundred forty-four thousand, four hundred seventy-seven".