290421912799 has 4 divisors (see below), whose sum is σ = 292992018336. Its totient is φ = 287851807264.

The previous prime is 290421912761. The next prime is 290421912811. The reversal of 290421912799 is 997219124092.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290421912799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290421912749) 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, 1285052599 + ... + 1285052824.

It is an arithmetic number, because the mean of its divisors is an integer number (73248004584).

Almost surely, 2^290421912799 is an apocalyptic number.

290421912799 is a deficient number, since it is larger than the sum of its proper divisors (2570105537).

290421912799 is a wasteful number, since it uses less digits than its factorization.

290421912799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570105536.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 290421912799 in words is "two hundred ninety billion, four hundred twenty-one million, nine hundred twelve thousand, seven hundred ninety-nine".