402776047241 has 2 divisors, whose sum is σ = 402776047242. Its totient is φ = 402776047240.

The previous prime is 402776047153. The next prime is 402776047243. The reversal of 402776047241 is 142740677204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397026010000 + 5750037241 = 630100^2 + 75829^2 .

It is a cyclic number.

It is not a de Polignac number, because 402776047241 - 2¹⁴ = 402776030857 is a prime.

Together with 402776047243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 402776047192 and 402776047201.

It is not a weakly prime, because it can be changed into another prime (402776047243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201388023620 + 201388023621.

It is an arithmetic number, because the mean of its divisors is an integer number (201388023621).

Almost surely, 2^402776047241 is an apocalyptic number.

It is an amenable number.

402776047241 is a deficient number, since it is larger than the sum of its proper divisors (1).

402776047241 is an equidigital number, since it uses as much as digits as its factorization.

402776047241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 44.

The spelling of 402776047241 in words is "four hundred two billion, seven hundred seventy-six million, forty-seven thousand, two hundred forty-one".