621148019359 has 12 divisors (see below), whose sum is σ = 742088590104. Its totient is φ = 518023057104.

The previous prime is 621148019341. The next prime is 621148019377. The reversal of 621148019359 is 953910841126.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (621148019341) and next prime (621148019377).

It is not a de Polignac number, because 621148019359 - 2¹¹ = 621148017311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621148017359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171302109 + ... + 171305734.

It is an arithmetic number, because the mean of its divisors is an integer number (61840715842).

Almost surely, 2^621148019359 is an apocalyptic number.

621148019359 is a deficient number, since it is larger than the sum of its proper divisors (120940570745).

621148019359 is a wasteful number, since it uses less digits than its factorization.

621148019359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342607894 (or 342607887 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 621148019359 in words is "six hundred twenty-one billion, one hundred forty-eight million, nineteen thousand, three hundred fifty-nine".