280381534054 has 4 divisors (see below), whose sum is σ = 420572301084. Its totient is φ = 140190767026.

The previous prime is 280381534039. The next prime is 280381534073. The reversal of 280381534054 is 450435183082.

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

It is a super-2 number, since 2×280381534054² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 280381534054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70095383512 + ... + 70095383515.

It is an arithmetic number, because the mean of its divisors is an integer number (105143075271).

Almost surely, 2^280381534054 is an apocalyptic number.

280381534054 is a deficient number, since it is larger than the sum of its proper divisors (140190767030).

280381534054 is a wasteful number, since it uses less digits than its factorization.

280381534054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140190767029.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 280381534054 in words is "two hundred eighty billion, three hundred eighty-one million, five hundred thirty-four thousand, fifty-four".