621247094358 has 16 divisors (see below), whose sum is σ = 1355448206016. Its totient is φ = 188256695240.

The previous prime is 621247094357. The next prime is 621247094389. The reversal of 621247094358 is 853490742126.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 621247094358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621247094357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706417316 + ... + 4706417447.

It is an arithmetic number, because the mean of its divisors is an integer number (84715512876).

It is a 1-persistent number, because it is pandigital, but 2⋅621247094358 = 1242494188716 is not.

Almost surely, 2^621247094358 is an apocalyptic number.

621247094358 is an abundant number, since it is smaller than the sum of its proper divisors (734201111658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621247094358 is a wasteful number, since it uses less digits than its factorization.

621247094358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412834779.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 621247094358 in words is "six hundred twenty-one billion, two hundred forty-seven million, ninety-four thousand, three hundred fifty-eight".