40472560646 has 16 divisors (see below), whose sum is σ = 70055142144. Its totient is φ = 17176980744.

The previous prime is 40472560633. The next prime is 40472560657. The reversal of 40472560646 is 64606527404.

It is a junction number, because it is equal to n+sod(n) for n = 40472560597 and 40472560606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14032040 + ... + 14034923.

It is an arithmetic number, because the mean of its divisors is an integer number (4378446384).

Almost surely, 2^40472560646 is an apocalyptic number.

40472560646 is a deficient number, since it is larger than the sum of its proper divisors (29582581498).

40472560646 is a wasteful number, since it uses less digits than its factorization.

40472560646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28067075.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 40472560646 in words is "forty billion, four hundred seventy-two million, five hundred sixty thousand, six hundred forty-six".