620254642605 has 32 divisors (see below), whose sum is σ = 1088911506816. Its totient is φ = 299594690304.

The previous prime is 620254642597. The next prime is 620254642607. The reversal of 620254642605 is 506246452026.

It is not a de Polignac number, because 620254642605 - 2³ = 620254642597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620254642607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29997147 + ... + 30017816.

It is an arithmetic number, because the mean of its divisors is an integer number (34028484588).

Almost surely, 2^620254642605 is an apocalyptic number.

620254642605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

620254642605 is a deficient number, since it is larger than the sum of its proper divisors (468656864211).

620254642605 is a wasteful number, since it uses less digits than its factorization.

620254642605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60015037.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 620254642605 in words is "six hundred twenty billion, two hundred fifty-four million, six hundred forty-two thousand, six hundred five".