624244420801 has 2 divisors, whose sum is σ = 624244420802. Its totient is φ = 624244420800.

The previous prime is 624244420727. The next prime is 624244420819. The reversal of 624244420801 is 108024442426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339114052225 + 285130368576 = 582335^2 + 533976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-624244420801 is a prime.

It is a super-2 number, since 2×624244420801² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (624244426801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312122210400 + 312122210401.

It is an arithmetic number, because the mean of its divisors is an integer number (312122210401).

Almost surely, 2^624244420801 is an apocalyptic number.

It is an amenable number.

624244420801 is a deficient number, since it is larger than the sum of its proper divisors (1).

624244420801 is an equidigital number, since it uses as much as digits as its factorization.

624244420801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 37.

The spelling of 624244420801 in words is "six hundred twenty-four billion, two hundred forty-four million, four hundred twenty thousand, eight hundred one".