263324142557 has 12 divisors (see below), whose sum is σ = 312833200320. Its totient is φ = 220904141976.

The previous prime is 263324142547. The next prime is 263324142593. The reversal of 263324142557 is 755241423362.

It is not a de Polignac number, because 263324142557 - 2²² = 263319948253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263324142527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57167507 + ... + 57172112.

It is an arithmetic number, because the mean of its divisors is an integer number (26069433360).

Almost surely, 2^263324142557 is an apocalyptic number.

It is an amenable number.

263324142557 is a deficient number, since it is larger than the sum of its proper divisors (49509057763).

263324142557 is a wasteful number, since it uses less digits than its factorization.

263324142557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114339680 (or 114339673 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 44.

The spelling of 263324142557 in words is "two hundred sixty-three billion, three hundred twenty-four million, one hundred forty-two thousand, five hundred fifty-seven".