402499827659 has 2 divisors, whose sum is σ = 402499827660. Its totient is φ = 402499827658.

The previous prime is 402499827641. The next prime is 402499827689. The reversal of 402499827659 is 956728994204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402499827659 - 2¹⁶ = 402499762123 is a prime.

It is a super-2 number, since 2×402499827659² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402499827595 and 402499827604.

It is not a weakly prime, because it can be changed into another prime (402499827689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201249913829 + 201249913830.

It is an arithmetic number, because the mean of its divisors is an integer number (201249913830).

Almost surely, 2^402499827659 is an apocalyptic number.

402499827659 is a deficient number, since it is larger than the sum of its proper divisors (1).

402499827659 is an equidigital number, since it uses as much as digits as its factorization.

402499827659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 402499827659 in words is "four hundred two billion, four hundred ninety-nine million, eight hundred twenty-seven thousand, six hundred fifty-nine".