448646976977 has 32 divisors (see below), whose sum is σ = 471655694880. Its totient is φ = 426204979200.

The previous prime is 448646976929. The next prime is 448646977007. The reversal of 448646976977 is 779679646844.

It can be written as a sum of positive squares in 16 ways, for example, as 35312423056 + 413334553921 = 187916^2 + 642911^2 .

It is a cyclic number.

It is not a de Polignac number, because 448646976977 - 2²⁴ = 448630199761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448646976898 and 448646976907.

It is not an unprimeable number, because it can be changed into a prime (448646976277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410472443 + ... + 410473535.

It is an arithmetic number, because the mean of its divisors is an integer number (14739240465).

Almost surely, 2^448646976977 is an apocalyptic number.

It is an amenable number.

448646976977 is a deficient number, since it is larger than the sum of its proper divisors (23008717903).

448646976977 is a wasteful number, since it uses less digits than its factorization.

448646976977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973.

The product of its digits is 3072577536, while the sum is 77.

The spelling of 448646976977 in words is "four hundred forty-eight billion, six hundred forty-six million, nine hundred seventy-six thousand, nine hundred seventy-seven".