40801349649 has 8 divisors (see below), whose sum is σ = 54411707392. Its totient is φ = 27195945840.

The previous prime is 40801349599. The next prime is 40801349657. The reversal of 40801349649 is 94694310804.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40801349649 - 2¹⁹ = 40800825361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40801349598 and 40801349607.

It is not an unprimeable number, because it can be changed into a prime (40801349689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219222 + ... + 1252239.

It is an arithmetic number, because the mean of its divisors is an integer number (6801463424).

Almost surely, 2^40801349649 is an apocalyptic number.

It is an amenable number.

40801349649 is a deficient number, since it is larger than the sum of its proper divisors (13610357743).

40801349649 is a wasteful number, since it uses less digits than its factorization.

40801349649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476967.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 40801349649 in words is "forty billion, eight hundred one million, three hundred forty-nine thousand, six hundred forty-nine".