621962936448 has 384 divisors, whose sum is σ = 2070063072000. Its totient is φ = 164431669248.

The previous prime is 621962936443. The next prime is 621962936453. The reversal of 621962936448 is 844639269126.

It is an interprime number because it is at equal distance from previous prime (621962936443) and next prime (621962936453).

It is a tau number, because it is divible by the number of its divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 621962936391 and 621962936400.

It is not an unprimeable number, because it can be changed into a prime (621962936443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15352443 + ... + 15392901.

It is an arithmetic number, because the mean of its divisors is an integer number (5390789250).

Almost surely, 2^621962936448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621962936448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035031536000).

621962936448 is an abundant number, since it is smaller than the sum of its proper divisors (1448100135552).

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

621962936448 is a wasteful number, since it uses less digits than its factorization.

621962936448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40552 (or 40533 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 60.

The spelling of 621962936448 in words is "six hundred twenty-one billion, nine hundred sixty-two million, nine hundred thirty-six thousand, four hundred forty-eight".