40709647432 has 8 divisors (see below), whose sum is σ = 76330588950. Its totient is φ = 20354823712.

The previous prime is 40709647411. The next prime is 40709647477. The reversal of 40709647432 is 23474690704.

It can be written as a sum of positive squares in only one way, i.e., 40334295556 + 375351876 = 200834^2 + 19374^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2544352957 + ... + 2544352972.

Almost surely, 2^40709647432 is an apocalyptic number.

It is an amenable number.

40709647432 is a deficient number, since it is larger than the sum of its proper divisors (35620941518).

40709647432 is a wasteful number, since it uses less digits than its factorization.

40709647432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088705935 (or 5088705931 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 40709647432 in words is "forty billion, seven hundred nine million, six hundred forty-seven thousand, four hundred thirty-two".