263051616440531 has 8 divisors (see below), whose sum is σ = 264318103299840. Its totient is φ = 261787012835328.

The previous prime is 263051616440513. The next prime is 263051616440579. The reversal of 263051616440531 is 135044616150362.

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

It is a cyclic number.

It is not a de Polignac number, because 263051616440531 - 2⁶ = 263051616440467 is a prime.

It is a super-2 number, since 2×263051616440531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263051616440581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470533496 + ... + 471092213.

It is an arithmetic number, because the mean of its divisors is an integer number (33039762912480).

Almost surely, 2^{263051616440531} is an apocalyptic number.

263051616440531 is a deficient number, since it is larger than the sum of its proper divisors (1266486859309).

263051616440531 is a wasteful number, since it uses less digits than its factorization.

263051616440531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941627053.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 263051616440531 in words is "two hundred sixty-three trillion, fifty-one billion, six hundred sixteen million, four hundred forty thousand, five hundred thirty-one".