280380602652 has 12 divisors (see below), whose sum is σ = 654221406216. Its totient is φ = 93460200880.

The previous prime is 280380602641. The next prime is 280380602681. The reversal of 280380602652 is 256206083082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×280380602652² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11682525099 + ... + 11682525122.

It is an arithmetic number, because the mean of its divisors is an integer number (54518450518).

Almost surely, 2^280380602652 is an apocalyptic number.

It is an amenable number.

280380602652 is an abundant number, since it is smaller than the sum of its proper divisors (373840803564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280380602652 is a wasteful number, since it uses less digits than its factorization.

280380602652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23365050228 (or 23365050226 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 280380602652 in words is "two hundred eighty billion, three hundred eighty million, six hundred two thousand, six hundred fifty-two".