7490521504 has 72 divisors (see below), whose sum is σ = 16323465060. Its totient is φ = 3371563008.

The previous prime is 7490521463. The next prime is 7490521517. The reversal of 7490521504 is 4051250947.

It can be written as a sum of positive squares in 2 ways, for example, as 7336265104 + 154256400 = 85652^2 + 12420^2 .

It is a super-2 number, since 2×7490521504² (a number of 21 digits) contains 22 as substring.

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, 274762 + ... + 300790.

Almost surely, 2^7490521504 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 7490521504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8161732530).

7490521504 is an abundant number, since it is smaller than the sum of its proper divisors (8832943556).

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

7490521504 is a wasteful number, since it uses less digits than its factorization.

7490521504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26102 (or 26071 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 7490521504 is about 86547.7989552594. The cubic root of 7490521504 is about 1956.6088716906.

The spelling of 7490521504 in words is "seven billion, four hundred ninety million, five hundred twenty-one thousand, five hundred four".