620725579614 has 256 divisors, whose sum is σ = 1670232145920. Its totient is φ = 167156784000.

The previous prime is 620725579601. The next prime is 620725579627. The reversal of 620725579614 is 416975527026.

It is a happy number.

620725579614 is a `hidden beast` number, since 6 + 2 + 0 + 7 + 2 + 5 + 579 + 61 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (620725579601) and next prime (620725579627).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 73619979 + ... + 73628409.

It is an arithmetic number, because the mean of its divisors is an integer number (6524344320).

Almost surely, 2^620725579614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620725579614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835116072960).

620725579614 is an abundant number, since it is smaller than the sum of its proper divisors (1049506566306).

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

620725579614 is a wasteful number, since it uses less digits than its factorization.

620725579614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8644 (or 8638 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 620725579614 in words is "six hundred twenty billion, seven hundred twenty-five million, five hundred seventy-nine thousand, six hundred fourteen".