620250240647 has 8 divisors (see below), whose sum is σ = 634622965776. Its totient is φ = 606036330432.

The previous prime is 620250240583. The next prime is 620250240689. The reversal of 620250240647 is 746042052026.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620250240647 - 2⁶ = 620250240583 is a prime.

It is a super-2 number, since 2×620250240647² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620250240647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620250240697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39695828 + ... + 39711449.

It is an arithmetic number, because the mean of its divisors is an integer number (79327870722).

Almost surely, 2^620250240647 is an apocalyptic number.

620250240647 is a deficient number, since it is larger than the sum of its proper divisors (14372725129).

620250240647 is a wasteful number, since it uses less digits than its factorization.

620250240647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79407457.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 620250240647 in words is "six hundred twenty billion, two hundred fifty million, two hundred forty thousand, six hundred forty-seven".