469749947957 has 2 divisors, whose sum is σ = 469749947958. Its totient is φ = 469749947956.

The previous prime is 469749947939. The next prime is 469749948053. The reversal of 469749947957 is 759749947964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469682691556 + 67256401 = 685334^2 + 8201^2 .

It is a cyclic number.

It is not a de Polignac number, because 469749947957 - 2⁸ = 469749947701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469749347957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234874973978 + 234874973979.

It is an arithmetic number, because the mean of its divisors is an integer number (234874973979).

Almost surely, 2^469749947957 is an apocalyptic number.

It is an amenable number.

469749947957 is a deficient number, since it is larger than the sum of its proper divisors (1).

469749947957 is an equidigital number, since it uses as much as digits as its factorization.

469749947957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320812160, while the sum is 80.

The spelling of 469749947957 in words is "four hundred sixty-nine billion, seven hundred forty-nine million, nine hundred forty-seven thousand, nine hundred fifty-seven".