628505593980 has 48 divisors (see below), whose sum is σ = 1919798907264. Its totient is φ = 152364992320.

The previous prime is 628505593951. The next prime is 628505593987. The reversal of 628505593980 is 89395505826.

It is a super-2 number, since 2×628505593980² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628505593987) 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, 476139942 + ... + 476141261.

It is an arithmetic number, because the mean of its divisors is an integer number (39995810568).

Almost surely, 2^628505593980 is an apocalyptic number.

628505593980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628505593980 is an abundant number, since it is smaller than the sum of its proper divisors (1291293313284).

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

628505593980 is a wasteful number, since it uses less digits than its factorization.

628505593980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952281226 (or 952281224 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 60.

The spelling of 628505593980 in words is "six hundred twenty-eight billion, five hundred five million, five hundred ninety-three thousand, nine hundred eighty".