7458756864 has 108 divisors (see below), whose sum is σ = 21496020336. Its totient is φ = 2294962176.

The previous prime is 7458756857. The next prime is 7458756923. The reversal of 7458756864 is 4686578547.

It is a super-2 number, since 2×7458756864² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7458756798 and 7458756807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101059 + ... + 158525.

Almost surely, 2^7458756864 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 7458756864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10748010168).

7458756864 is an abundant number, since it is smaller than the sum of its proper divisors (14037263472).

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

7458756864 is a wasteful number, since it uses less digits than its factorization.

7458756864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57512 (or 57485 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 60.

The square root of 7458756864 is about 86364.0947616543. The cubic root of 7458756864 is about 1953.8391919311.

The spelling of 7458756864 in words is "seven billion, four hundred fifty-eight million, seven hundred fifty-six thousand, eight hundred sixty-four".