72313134870 has 32 divisors (see below), whose sum is σ = 179149962240. Its totient is φ = 18661453920.

The previous prime is 72313134851. The next prime is 72313134871. The reversal of 72313134870 is 7843131327.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72313134871) 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, 38877100 + ... + 38878959.

It is an arithmetic number, because the mean of its divisors is an integer number (5598436320).

Almost surely, 2^72313134870 is an apocalyptic number.

72313134870 is an abundant number, since it is smaller than the sum of its proper divisors (106836827370).

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

72313134870 is a wasteful number, since it uses less digits than its factorization.

72313134870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77756100.

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 72313134870 in words is "seventy-two billion, three hundred thirteen million, one hundred thirty-four thousand, eight hundred seventy".