7128470031 has 8 divisors (see below), whose sum is σ = 9505926144. Its totient is φ = 4751663640.

The previous prime is 7128470003. The next prime is 7128470033. The reversal of 7128470031 is 1300748217.

It is a happy number.

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

It is not a de Polignac number, because 7128470031 - 2⁶ = 7128469967 is a prime.

It is a super-2 number, since 2×7128470031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7128469974 and 7128470001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7128470033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136225 + ... + 181146.

It is an arithmetic number, because the mean of its divisors is an integer number (1188240768).

Almost surely, 2^7128470031 is an apocalyptic number.

7128470031 is a deficient number, since it is larger than the sum of its proper divisors (2377456113).

7128470031 is a wasteful number, since it uses less digits than its factorization.

7128470031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324861.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 7128470031 is about 84430.2672683203. The cubic root of 7128470031 is about 1924.5628989916.

The spelling of 7128470031 in words is "seven billion, one hundred twenty-eight million, four hundred seventy thousand, thirty-one".