402776047579 has 2 divisors, whose sum is σ = 402776047580. Its totient is φ = 402776047578.

The previous prime is 402776047547. The next prime is 402776047613. The reversal of 402776047579 is 975740677204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402776047579 - 2⁵ = 402776047547 is a prime.

It is a super-2 number, since 2×402776047579² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402776047279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201388023789 + 201388023790.

It is an arithmetic number, because the mean of its divisors is an integer number (201388023790).

Almost surely, 2^402776047579 is an apocalyptic number.

402776047579 is a deficient number, since it is larger than the sum of its proper divisors (1).

402776047579 is an equidigital number, since it uses as much as digits as its factorization.

402776047579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20744640, while the sum is 58.

The spelling of 402776047579 in words is "four hundred two billion, seven hundred seventy-six million, forty-seven thousand, five hundred seventy-nine".