280179255551 has 4 divisors (see below), whose sum is σ = 301731505992. Its totient is φ = 258627005112.

The previous prime is 280179255493. The next prime is 280179255553. The reversal of 280179255551 is 155552971082.

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

It is a cyclic number.

It is not a de Polignac number, because 280179255551 - 2²² = 280175061247 is a prime.

It is a super-2 number, since 2×280179255551² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280179255551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280179255553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10776125201 + ... + 10776125226.

It is an arithmetic number, because the mean of its divisors is an integer number (75432876498).

Almost surely, 2^280179255551 is an apocalyptic number.

280179255551 is a deficient number, since it is larger than the sum of its proper divisors (21552250441).

280179255551 is a wasteful number, since it uses less digits than its factorization.

280179255551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21552250440.

The product of its (nonzero) digits is 1260000, while the sum is 50.

The spelling of 280179255551 in words is "two hundred eighty billion, one hundred seventy-nine million, two hundred fifty-five thousand, five hundred fifty-one".