476404321342493 has 2 divisors, whose sum is σ = 476404321342494. Its totient is φ = 476404321342492.

The previous prime is 476404321342427. The next prime is 476404321342513. The reversal of 476404321342493 is 394243123404674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310698508196164 + 165705813146329 = 17626642^2 + 12872677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-476404321342493 is a prime.

It is a super-2 number, since 2×476404321342493² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476404321342693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238202160671246 + 238202160671247.

It is an arithmetic number, because the mean of its divisors is an integer number (238202160671247).

Almost surely, 2^{476404321342493} is an apocalyptic number.

It is an amenable number.

476404321342493 is a deficient number, since it is larger than the sum of its proper divisors (1).

476404321342493 is an equidigital number, since it uses as much as digits as its factorization.

476404321342493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41803776, while the sum is 56.

The spelling of 476404321342493 in words is "four hundred seventy-six trillion, four hundred four billion, three hundred twenty-one million, three hundred forty-two thousand, four hundred ninety-three".