40358069644 has 6 divisors (see below), whose sum is σ = 70626621884. Its totient is φ = 20179034820.

The previous prime is 40358069641. The next prime is 40358069677. The reversal of 40358069644 is 44696085304.

It is not an unprimeable number, because it can be changed into a prime (40358069641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5044758702 + ... + 5044758709.

Almost surely, 2^40358069644 is an apocalyptic number.

It is an amenable number.

40358069644 is a deficient number, since it is larger than the sum of its proper divisors (30268552240).

40358069644 is a wasteful number, since it uses less digits than its factorization.

40358069644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089517415 (or 10089517413 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 40358069644 in words is "forty billion, three hundred fifty-eight million, sixty-nine thousand, six hundred forty-four".