7276448331385 has 8 divisors (see below), whose sum is σ = 8818190849736. Its totient is φ = 5763523430400.

The previous prime is 7276448331349. The next prime is 7276448331389. The reversal of 7276448331385 is 5831338446727.

It can be written as a sum of positive squares in 4 ways, for example, as 5179156402176 + 2097291929209 = 2275776^2 + 1448203^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7276448331385 - 2²³ = 7276439942777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7276448331389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7204403784 + ... + 7204404793.

It is an arithmetic number, because the mean of its divisors is an integer number (1102273856217).

Almost surely, 2^{7276448331385} is an apocalyptic number.

It is an amenable number.

7276448331385 is a deficient number, since it is larger than the sum of its proper divisors (1541742518351).

7276448331385 is a wasteful number, since it uses less digits than its factorization.

7276448331385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408808683.

The product of its digits is 81285120, while the sum is 61.

The spelling of 7276448331385 in words is "seven trillion, two hundred seventy-six billion, four hundred forty-eight million, three hundred thirty-one thousand, three hundred eighty-five".