461490357387457 has 2 divisors, whose sum is σ = 461490357387458. Its totient is φ = 461490357387456.

The previous prime is 461490357387439. The next prime is 461490357387517. The reversal of 461490357387457 is 754783753094164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237191540248576 + 224298817138881 = 15401024^2 + 14976609^2 .

It is a cyclic number.

It is not a de Polignac number, because 461490357387457 - 2²³ = 461490348998849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461490357387457.

It is not a weakly prime, because it can be changed into another prime (461490357387407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230745178693728 + 230745178693729.

It is an arithmetic number, because the mean of its divisors is an integer number (230745178693729).

Almost surely, 2^{461490357387457} is an apocalyptic number.

It is an amenable number.

461490357387457 is a deficient number, since it is larger than the sum of its proper divisors (1).

461490357387457 is an equidigital number, since it uses as much as digits as its factorization.

461490357387457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2133734400, while the sum is 73.

The spelling of 461490357387457 in words is "four hundred sixty-one trillion, four hundred ninety billion, three hundred fifty-seven million, three hundred eighty-seven thousand, four hundred fifty-seven".