672764505608 has 32 divisors (see below), whose sum is σ = 1371162764160. Its totient is φ = 307604758080.

The previous prime is 672764505547. The next prime is 672764505613. The reversal of 672764505608 is 806505467276.

It is a super-2 number, since 2×672764505608² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 30217328 + ... + 30239583.

It is an arithmetic number, because the mean of its divisors is an integer number (42848836380).

Almost surely, 2^672764505608 is an apocalyptic number.

It is an amenable number.

672764505608 is an abundant number, since it is smaller than the sum of its proper divisors (698398258552).

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

672764505608 is a wasteful number, since it uses less digits than its factorization.

672764505608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60457037 (or 60457033 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 672764505608 in words is "six hundred seventy-two billion, seven hundred sixty-four million, five hundred five thousand, six hundred eight".