276645146746433 has 4 divisors (see below), whose sum is σ = 276645193532628. Its totient is φ = 276645099960240.

The previous prime is 276645146746357. The next prime is 276645146746459. The reversal of 276645146746433 is 334647641546672.

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 245888993999104 + 30756152747329 = 15680848^2 + 5545823^2 .

It is a cyclic number.

It is not a de Polignac number, because 276645146746433 - 2²⁴ = 276645129969217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276645145746433) 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, 12977966 + ... + 26864807.

It is an arithmetic number, because the mean of its divisors is an integer number (69161298383157).

Almost surely, 2^{276645146746433} is an apocalyptic number.

It is an amenable number.

276645146746433 is a deficient number, since it is larger than the sum of its proper divisors (46786195).

276645146746433 is an equidigital number, since it uses as much as digits as its factorization.

276645146746433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46786194.

The product of its digits is 1463132160, while the sum is 68.

The spelling of 276645146746433 in words is "two hundred seventy-six trillion, six hundred forty-five billion, one hundred forty-six million, seven hundred forty-six thousand, four hundred thirty-three".