620306491750 has 32 divisors (see below), whose sum is σ = 1266778644768. Its totient is φ = 225565996000.

The previous prime is 620306491711. The next prime is 620306491757. The reversal of 620306491750 is 57194603026.

It is a junction number, because it is equal to n+sod(n) for n = 620306491697 and 620306491706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620306491757) 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 15 ways as a sum of consecutive naturals, for example, 112780249 + ... + 112785748.

It is an arithmetic number, because the mean of its divisors is an integer number (39586832649).

Almost surely, 2^620306491750 is an apocalyptic number.

620306491750 is an abundant number, since it is smaller than the sum of its proper divisors (646472153018).

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

620306491750 is a wasteful number, since it uses less digits than its factorization.

620306491750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225566025 (or 225566015 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 620306491750 in words is "six hundred twenty billion, three hundred six million, four hundred ninety-one thousand, seven hundred fifty".