259920949481 has 4 divisors (see below), whose sum is σ = 271221860352. Its totient is φ = 248620038612.

The previous prime is 259920949433. The next prime is 259920949501. The reversal of 259920949481 is 184949029952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 259920949481 - 2³⁴ = 242741080297 is a prime.

It is a super-2 number, since 2×259920949481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259920942481) 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, 5650455401 + ... + 5650455446.

It is an arithmetic number, because the mean of its divisors is an integer number (67805465088).

Almost surely, 2^259920949481 is an apocalyptic number.

It is an amenable number.

259920949481 is a deficient number, since it is larger than the sum of its proper divisors (11300910871).

259920949481 is a wasteful number, since it uses less digits than its factorization.

259920949481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300910870.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 259920949481 in words is "two hundred fifty-nine billion, nine hundred twenty million, nine hundred forty-nine thousand, four hundred eighty-one".