276563345945 has 16 divisors (see below), whose sum is σ = 332197046208. Its totient is φ = 221036773440.

The previous prime is 276563345899. The next prime is 276563345951. The reversal of 276563345945 is 549543365672.

It is a happy number.

It is not a de Polignac number, because 276563345945 - 2⁶ = 276563345881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28253342 + ... + 28263128.

It is an arithmetic number, because the mean of its divisors is an integer number (20762315388).

Almost surely, 2^276563345945 is an apocalyptic number.

It is an amenable number.

276563345945 is a deficient number, since it is larger than the sum of its proper divisors (55633700263).

276563345945 is a wasteful number, since it uses less digits than its factorization.

276563345945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14680.

The product of its digits is 81648000, while the sum is 59.

The spelling of 276563345945 in words is "two hundred seventy-six billion, five hundred sixty-three million, three hundred forty-five thousand, nine hundred forty-five".