621483397152 has 48 divisors (see below), whose sum is σ = 1632203248032. Its totient is φ = 207058360320.

The previous prime is 621483397037. The next prime is 621483397153. The reversal of 621483397152 is 251793384126.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×621483397152² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 621483397095 and 621483397104.

It is not an unprimeable number, because it can be changed into a prime (621483397153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411174 + ... + 1798437.

It is an arithmetic number, because the mean of its divisors is an integer number (34004234334).

Almost surely, 2^621483397152 is an apocalyptic number.

It is an amenable number.

621483397152 is an abundant number, since it is smaller than the sum of its proper divisors (1010719850880).

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

621483397152 is a wasteful number, since it uses less digits than its factorization.

621483397152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211641 (or 3211633 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The spelling of 621483397152 in words is "six hundred twenty-one billion, four hundred eighty-three million, three hundred ninety-seven thousand, one hundred fifty-two".