7542424064 has 160 divisors (see below), whose sum is σ = 17871891840. Its totient is φ = 3113091072.

The previous prime is 7542424061. The next prime is 7542424069. The reversal of 7542424064 is 4604242457.

It is a super-2 number, since 2×7542424064² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7542424061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11206832 + ... + 11207504.

It is an arithmetic number, because the mean of its divisors is an integer number (111699324).

Almost surely, 2^7542424064 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 7542424064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8935945920).

7542424064 is an abundant number, since it is smaller than the sum of its proper divisors (10329467776).

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

7542424064 is an equidigital number, since it uses as much as digits as its factorization.

7542424064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 38.

The square root of 7542424064 is about 86847.1304304293. The cubic root of 7542424064 is about 1961.1176521608.

The spelling of 7542424064 in words is "seven billion, five hundred forty-two million, four hundred twenty-four thousand, sixty-four".