63400001749 has 8 divisors (see below), whose sum is σ = 73010253888. Its totient is φ = 53928026880.

The previous prime is 63400001737. The next prime is 63400001809. The reversal of 63400001749 is 94710000436.

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 63400001749 - 2¹¹ = 63399999701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63400001449) 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, 34568332 + ... + 34570165.

It is an arithmetic number, because the mean of its divisors is an integer number (9126281736).

Almost surely, 2^63400001749 is an apocalyptic number.

It is an amenable number.

63400001749 is a deficient number, since it is larger than the sum of its proper divisors (9610252139).

63400001749 is a wasteful number, since it uses less digits than its factorization.

63400001749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69138635.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 63400001749 in words is "sixty-three billion, four hundred million, one thousand, seven hundred forty-nine".