672726565506 has 8 divisors (see below), whose sum is σ = 1345453131024. Its totient is φ = 224242188500.

The previous prime is 672726565499. The next prime is 672726565573. The reversal of 672726565506 is 605565627276.

It is a sphenic number, since it is the product of 3 distinct primes.

672726565506 is an admirable number.

It is a super-2 number, since 2×672726565506² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56060547120 + ... + 56060547131.

It is an arithmetic number, because the mean of its divisors is an integer number (168181641378).

Almost surely, 2^672726565506 is an apocalyptic number.

672726565506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

672726565506 is a wasteful number, since it uses less digits than its factorization.

672726565506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112121094256.

The product of its (nonzero) digits is 31752000, while the sum is 57.

The spelling of 672726565506 in words is "six hundred seventy-two billion, seven hundred twenty-six million, five hundred sixty-five thousand, five hundred six".