621792460873 has 2 divisors, whose sum is σ = 621792460874. Its totient is φ = 621792460872.

The previous prime is 621792460789. The next prime is 621792460903. The reversal of 621792460873 is 378064297126.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320256391744 + 301536069129 = 565912^2 + 549123^2 .

It is a cyclic number.

It is not a de Polignac number, because 621792460873 - 2¹³ = 621792452681 is a prime.

It is not a weakly prime, because it can be changed into another prime (621792460073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310896230436 + 310896230437.

It is an arithmetic number, because the mean of its divisors is an integer number (310896230437).

Almost surely, 2^621792460873 is an apocalyptic number.

It is an amenable number.

621792460873 is a deficient number, since it is larger than the sum of its proper divisors (1).

621792460873 is an equidigital number, since it uses as much as digits as its factorization.

621792460873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 621792460873 in words is "six hundred twenty-one billion, seven hundred ninety-two million, four hundred sixty thousand, eight hundred seventy-three".