448531157377 has 2 divisors, whose sum is σ = 448531157378. Its totient is φ = 448531157376.

The previous prime is 448531157363. The next prime is 448531157453. The reversal of 448531157377 is 773751135844.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378826709121 + 69704448256 = 615489^2 + 264016^2 .

It is a cyclic number.

It is not a de Polignac number, because 448531157377 - 2²³ = 448522768769 is a prime.

It is a super-2 number, since 2×448531157377² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (448531157777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224265578688 + 224265578689.

It is an arithmetic number, because the mean of its divisors is an integer number (224265578689).

Almost surely, 2^448531157377 is an apocalyptic number.

It is an amenable number.

448531157377 is a deficient number, since it is larger than the sum of its proper divisors (1).

448531157377 is an equidigital number, since it uses as much as digits as its factorization.

448531157377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9878400, while the sum is 55.

The spelling of 448531157377 in words is "four hundred forty-eight billion, five hundred thirty-one million, one hundred fifty-seven thousand, three hundred seventy-seven".