672557046980 has 72 divisors (see below), whose sum is σ = 1769342418648. Its totient is φ = 212853215232.

The previous prime is 672557046949. The next prime is 672557046983. The reversal of 672557046980 is 89640755276.

It can be written as a sum of positive squares in 4 ways, for example, as 153039004804 + 519518042176 = 391202^2 + 720776^2 .

It is not an unprimeable number, because it can be changed into a prime (672557046983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26382749 + ... + 26408228.

It is an arithmetic number, because the mean of its divisors is an integer number (24574200259).

Almost surely, 2^672557046980 is an apocalyptic number.

It is an amenable number.

672557046980 is an abundant number, since it is smaller than the sum of its proper divisors (1096785371668).

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

672557046980 is a wasteful number, since it uses less digits than its factorization.

672557046980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52791013 (or 52791004 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 59.

The spelling of 672557046980 in words is "six hundred seventy-two billion, five hundred fifty-seven million, forty-six thousand, nine hundred eighty".