620473783690 has 32 divisors (see below), whose sum is σ = 1172561463936. Its totient is φ = 235942217280.

The previous prime is 620473783663. The next prime is 620473783691. The reversal of 620473783690 is 96387374026.

It is a super-2 number, since 2×620473783690² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620473783691) 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, 8237701 + ... + 8312680.

It is an arithmetic number, because the mean of its divisors is an integer number (36642545748).

Almost surely, 2^620473783690 is an apocalyptic number.

620473783690 is a deficient number, since it is larger than the sum of its proper divisors (552087680246).

620473783690 is a wasteful number, since it uses less digits than its factorization.

620473783690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16550574.

The product of its (nonzero) digits is 9144576, while the sum is 55.

The spelling of 620473783690 in words is "six hundred twenty billion, four hundred seventy-three million, seven hundred eighty-three thousand, six hundred ninety".