7975133775 has 48 divisors (see below), whose sum is σ = 16743571200. Its totient is φ = 3645773280.

The previous prime is 7975133753. The next prime is 7975133801. The reversal of 7975133775 is 5773315797.

7975133775 is a `hidden beast` number, since 7 + 97 + 513 + 37 + 7 + 5 = 666.

It is not a de Polignac number, because 7975133775 - 2⁵ = 7975133743 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 839205 + ... + 848654.

It is an arithmetic number, because the mean of its divisors is an integer number (348824400).

Almost surely, 2^7975133775 is an apocalyptic number.

7975133775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7975133775 is an abundant number, since it is smaller than the sum of its proper divisors (8768437425).

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

7975133775 is a wasteful number, since it uses less digits than its factorization.

7975133775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687885 (or 1687874 counting only the distinct ones).

The product of its digits is 4862025, while the sum is 54.

The square root of 7975133775 is about 89303.6044905243. The cubic root of 7975133775 is about 1997.9256638920.

It can be divided in two parts, 79751 and 33775, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 7975133775 in words is "seven billion, nine hundred seventy-five million, one hundred thirty-three thousand, seven hundred seventy-five".