620551110427 has 2 divisors, whose sum is σ = 620551110428. Its totient is φ = 620551110426.

The previous prime is 620551110373. The next prime is 620551110433. The reversal of 620551110427 is 724011155026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620551110427 - 2³¹ = 618403626779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620551110392 and 620551110401.

It is not a weakly prime, because it can be changed into another prime (620551110527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310275555213 + 310275555214.

It is an arithmetic number, because the mean of its divisors is an integer number (310275555214).

Almost surely, 2^620551110427 is an apocalyptic number.

620551110427 is a deficient number, since it is larger than the sum of its proper divisors (1).

620551110427 is an equidigital number, since it uses as much as digits as its factorization.

620551110427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 620551110427 in words is "six hundred twenty billion, five hundred fifty-one million, one hundred ten thousand, four hundred twenty-seven".