620684029464 has 128 divisors (see below), whose sum is σ = 1626485184000. Its totient is φ = 197234150400.

The previous prime is 620684029463. The next prime is 620684029577. The reversal of 620684029464 is 464920486026.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620684029463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6082092 + ... + 6183300.

It is an arithmetic number, because the mean of its divisors is an integer number (12706915500).

Almost surely, 2^620684029464 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 620684029464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813242592000).

620684029464 is an abundant number, since it is smaller than the sum of its proper divisors (1005801154536).

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

620684029464 is a wasteful number, since it uses less digits than its factorization.

620684029464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101409 (or 101405 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 620684029464 in words is "six hundred twenty billion, six hundred eighty-four million, twenty-nine thousand, four hundred sixty-four".