469805731393 has 4 divisors (see below), whose sum is σ = 471199814020. Its totient is φ = 468411648768.

The previous prime is 469805731391. The next prime is 469805731463. The reversal of 469805731393 is 393137508964.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71989182864 + 397816548529 = 268308^2 + 630727^2 .

It is a cyclic number.

It is not a de Polignac number, because 469805731393 - 2¹ = 469805731391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469805731391) 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, 697040808 + ... + 697041481.

It is an arithmetic number, because the mean of its divisors is an integer number (117799953505).

Almost surely, 2^469805731393 is an apocalyptic number.

It is an amenable number.

469805731393 is a deficient number, since it is larger than the sum of its proper divisors (1394082627).

469805731393 is a wasteful number, since it uses less digits than its factorization.

469805731393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394082626.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 469805731393 in words is "four hundred sixty-nine billion, eight hundred five million, seven hundred thirty-one thousand, three hundred ninety-three".