427739590049 has 2 divisors, whose sum is σ = 427739590050. Its totient is φ = 427739590048.

The previous prime is 427739590039. The next prime is 427739590081. The reversal of 427739590049 is 940095937724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331093215649 + 96646374400 = 575407^2 + 310880^2 .

It is a cyclic number.

It is not a de Polignac number, because 427739590049 - 2⁸ = 427739589793 is a prime.

It is a super-2 number, since 2×427739590049² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 427739590049.

It is not a weakly prime, because it can be changed into another prime (427739590039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213869795024 + 213869795025.

It is an arithmetic number, because the mean of its divisors is an integer number (213869795025).

Almost surely, 2^427739590049 is an apocalyptic number.

It is an amenable number.

427739590049 is a deficient number, since it is larger than the sum of its proper divisors (1).

427739590049 is an equidigital number, since it uses as much as digits as its factorization.

427739590049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 427739590049 in words is "four hundred twenty-seven billion, seven hundred thirty-nine million, five hundred ninety thousand, forty-nine".