469805731391 has 2 divisors, whose sum is σ = 469805731392. Its totient is φ = 469805731390.

The previous prime is 469805731349. The next prime is 469805731463. The reversal of 469805731391 is 193137508964.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-469805731391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469805731331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234902865695 + 234902865696.

It is an arithmetic number, because the mean of its divisors is an integer number (234902865696).

Almost surely, 2^469805731391 is an apocalyptic number.

469805731391 is a deficient number, since it is larger than the sum of its proper divisors (1).

469805731391 is an equidigital number, since it uses as much as digits as its factorization.

469805731391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 469805731391 in words is "four hundred sixty-nine billion, eight hundred five million, seven hundred thirty-one thousand, three hundred ninety-one".