626382240377 has 2 divisors, whose sum is σ = 626382240378. Its totient is φ = 626382240376.

The previous prime is 626382240347. The next prime is 626382240383. The reversal of 626382240377 is 773042283626.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319921459456 + 306460780921 = 565616^2 + 553589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626382240377 is a prime.

It is a super-2 number, since 2×626382240377² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (626382240347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313191120188 + 313191120189.

It is an arithmetic number, because the mean of its divisors is an integer number (313191120189).

Almost surely, 2^626382240377 is an apocalyptic number.

It is an amenable number.

626382240377 is a deficient number, since it is larger than the sum of its proper divisors (1).

626382240377 is an equidigital number, since it uses as much as digits as its factorization.

626382240377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 626382240377 in words is "six hundred twenty-six billion, three hundred eighty-two million, two hundred forty thousand, three hundred seventy-seven".