70224728213 has 6 divisors (see below), whose sum is σ = 74115295254. Its totient is φ = 66528689544.

The previous prime is 70224728207. The next prime is 70224728263. The reversal of 70224728213 is 31282742207.

It can be written as a sum of positive squares in only one way, i.e., 56976257809 + 13248470404 = 238697^2 + 115102^2 .

It is not a de Polignac number, because 70224728213 - 2²⁰ = 70223679637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70224728263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97263806 + ... + 97264527.

It is an arithmetic number, because the mean of its divisors is an integer number (12352549209).

Almost surely, 2^70224728213 is an apocalyptic number.

It is an amenable number.

70224728213 is a deficient number, since it is larger than the sum of its proper divisors (3890567041).

70224728213 is a wasteful number, since it uses less digits than its factorization.

70224728213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194528371 (or 194528352 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 70224728213 in words is "seventy billion, two hundred twenty-four million, seven hundred twenty-eight thousand, two hundred thirteen".