449786239157 has 4 divisors (see below), whose sum is σ = 460756635276. Its totient is φ = 438815843040.

The previous prime is 449786239141. The next prime is 449786239159. The reversal of 449786239157 is 751932687944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 171805276036 + 277980963121 = 414494^2 + 527239^2 .

It is not a de Polignac number, because 449786239157 - 2⁴ = 449786239141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449786239093 and 449786239102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449786239159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5485197998 + ... + 5485198079.

It is an arithmetic number, because the mean of its divisors is an integer number (115189158819).

Almost surely, 2^449786239157 is an apocalyptic number.

It is an amenable number.

449786239157 is a deficient number, since it is larger than the sum of its proper divisors (10970396119).

449786239157 is a wasteful number, since it uses less digits than its factorization.

449786239157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970396118.

The product of its digits is 91445760, while the sum is 65.

The spelling of 449786239157 in words is "four hundred forty-nine billion, seven hundred eighty-six million, two hundred thirty-nine thousand, one hundred fifty-seven".