280040242694 has 8 divisors (see below), whose sum is σ = 420284641080. Its totient is φ = 139945362336.

The previous prime is 280040242673. The next prime is 280040242763. The reversal of 280040242694 is 496242040082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×280040242694² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37374824 + ... + 37382315.

It is an arithmetic number, because the mean of its divisors is an integer number (52535580135).

Almost surely, 2^280040242694 is an apocalyptic number.

280040242694 is a deficient number, since it is larger than the sum of its proper divisors (140244398386).

280040242694 is a wasteful number, since it uses less digits than its factorization.

280040242694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74759014.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 280040242694 in words is "two hundred eighty billion, forty million, two hundred forty-two thousand, six hundred ninety-four".