263730272737251 has 4 divisors (see below), whose sum is σ = 351640363649672. Its totient is φ = 175820181824832.

The previous prime is 263730272737229. The next prime is 263730272737271. The reversal of 263730272737251 is 152737272037362.

It is a happy number.

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

It is not a de Polignac number, because 263730272737251 - 2⁵ = 263730272737219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263730272737191 and 263730272737200.

It is not an unprimeable number, because it can be changed into a prime (263730272737271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43955045456206 + ... + 43955045456211.

It is an arithmetic number, because the mean of its divisors is an integer number (87910090912418).

Almost surely, 2^{263730272737251} is an apocalyptic number.

263730272737251 is a deficient number, since it is larger than the sum of its proper divisors (87910090912421).

263730272737251 is an equidigital number, since it uses as much as digits as its factorization.

263730272737251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87910090912420.

The product of its (nonzero) digits is 31116960, while the sum is 57.

The spelling of 263730272737251 in words is "two hundred sixty-three trillion, seven hundred thirty billion, two hundred seventy-two million, seven hundred thirty-seven thousand, two hundred fifty-one".