724647228874 has 4 divisors (see below), whose sum is σ = 1086970843314. Its totient is φ = 362323614436.

The previous prime is 724647228871. The next prime is 724647228959. The reversal of 724647228874 is 478822746427.

724647228874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 411990678225 + 312656550649 = 641865^2 + 559157^2 .

It is a super-2 number, since 2×724647228874² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (724647228871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181161807217 + ... + 181161807220.

Almost surely, 2^724647228874 is an apocalyptic number.

724647228874 is a deficient number, since it is larger than the sum of its proper divisors (362323614440).

724647228874 is a wasteful number, since it uses less digits than its factorization.

724647228874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362323614439.

The product of its digits is 67436544, while the sum is 61.

The spelling of 724647228874 in words is "seven hundred twenty-four billion, six hundred forty-seven million, two hundred twenty-eight thousand, eight hundred seventy-four".