75502949284 has 81 divisors (see below), whose sum is σ = 162374990337. Its totient is φ = 30625656768.

The previous prime is 75502949281. The next prime is 75502949351. The reversal of 75502949284 is 48294920557.

It is a happy number.

The square root of 75502949284 is 274778.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 72894600100 + 2608349184 = 269990^2 + 51072^2 .

It is a super-2 number, since 2×75502949284² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75502949281) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 73090432 + ... + 73091464.

Almost surely, 2^75502949284 is an apocalyptic number.

75502949284 is the 274778-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75502949284

75502949284 is an abundant number, since it is smaller than the sum of its proper divisors (86872041053).

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

75502949284 is a wasteful number, since it uses less digits than its factorization.

75502949284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 75502949284 in words is "seventy-five billion, five hundred two million, nine hundred forty-nine thousand, two hundred eighty-four".