63757007449 has 24 divisors (see below), whose sum is σ = 67770646272. Its totient is φ = 59970849120.

The previous prime is 63757007393. The next prime is 63757007459. The reversal of 63757007449 is 94470075736.

It is a de Polignac number, because none of the positive numbers 2^k-63757007449 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63757007396 and 63757007405.

It is not an unprimeable number, because it can be changed into a prime (63757007459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39526167 + ... + 39527779.

It is an arithmetic number, because the mean of its divisors is an integer number (2823776928).

Almost surely, 2^63757007449 is an apocalyptic number.

It is an amenable number.

63757007449 is a deficient number, since it is larger than the sum of its proper divisors (4013638823).

63757007449 is a wasteful number, since it uses less digits than its factorization.

63757007449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 63757007449 in words is "sixty-three billion, seven hundred fifty-seven million, seven thousand, four hundred forty-nine".