672766023620 has 24 divisors (see below), whose sum is σ = 1414877212224. Its totient is φ = 268712397536.

The previous prime is 672766023599. The next prime is 672766023661. The reversal of 672766023620 is 26320667276.

It is a happy number.

It is a super-2 number, since 2×672766023620² (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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24611744 + ... + 24639063.

It is an arithmetic number, because the mean of its divisors is an integer number (58953217176).

Almost surely, 2^672766023620 is an apocalyptic number.

It is an amenable number.

672766023620 is an abundant number, since it is smaller than the sum of its proper divisors (742111188604).

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

672766023620 is a wasteful number, since it uses less digits than its factorization.

672766023620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49251499 (or 49251497 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 672766023620 in words is "six hundred seventy-two billion, seven hundred sixty-six million, twenty-three thousand, six hundred twenty".