40561404052 has 72 divisors (see below), whose sum is σ = 77587034112. Its totient is φ = 18545155200.

The previous prime is 40561404047. The next prime is 40561404071. The reversal of 40561404052 is 25040416504.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40929277 + ... + 40930267.

It is an arithmetic number, because the mean of its divisors is an integer number (1077597696).

Almost surely, 2^40561404052 is an apocalyptic number.

It is an amenable number.

40561404052 is a deficient number, since it is larger than the sum of its proper divisors (37025630060).

40561404052 is a wasteful number, since it uses less digits than its factorization.

40561404052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 40561404052 in words is "forty billion, five hundred sixty-one million, four hundred four thousand, fifty-two".