40744525642 has 12 divisors (see below), whose sum is σ = 64502761266. Its totient is φ = 19300038120.

The previous prime is 40744525607. The next prime is 40744525667. The reversal of 40744525642 is 24652544704.

It can be written as a sum of positive squares in only one way, i.e., 21353684641 + 19390841001 = 146129^2 + 139251^2 .

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 5 ways as a sum of consecutive naturals, for example, 28215709 + ... + 28217152.

Almost surely, 2^40744525642 is an apocalyptic number.

40744525642 is a deficient number, since it is larger than the sum of its proper divisors (23758235624).

40744525642 is a wasteful number, since it uses less digits than its factorization.

40744525642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56432901 (or 56432882 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 43.

The spelling of 40744525642 in words is "forty billion, seven hundred forty-four million, five hundred twenty-five thousand, six hundred forty-two".