7479665256 has 64 divisors (see below), whose sum is σ = 21435194880. Its totient is φ = 2130575040.

The previous prime is 7479665231. The next prime is 7479665269. The reversal of 7479665256 is 6525669747.

It is a junction number, because it is equal to n+sod(n) for n = 7479665196 and 7479665205.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11646 + ... + 122861.

It is an arithmetic number, because the mean of its divisors is an integer number (334924920).

Almost surely, 2^7479665256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7479665256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10717597440).

7479665256 is an abundant number, since it is smaller than the sum of its proper divisors (13955529624).

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

7479665256 is a wasteful number, since it uses less digits than its factorization.

7479665256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134854 (or 134850 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 57.

The square root of 7479665256 is about 86485.0579926961. The cubic root of 7479665256 is about 1955.6631564349.

The spelling of 7479665256 in words is "seven billion, four hundred seventy-nine million, six hundred sixty-five thousand, two hundred fifty-six".