75241994615 has 16 divisors (see below), whose sum is σ = 92893356768. Its totient is φ = 58482902016.

The previous prime is 75241994603. The next prime is 75241994617. The reversal of 75241994615 is 51649914257.

It is a cyclic number.

It is not a de Polignac number, because 75241994615 - 2¹⁶ = 75241929079 is a prime.

It is a super-2 number, since 2×75241994615² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75241994617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513922 + ... + 1562831.

It is an arithmetic number, because the mean of its divisors is an integer number (5805834798).

Almost surely, 2^75241994615 is an apocalyptic number.

75241994615 is a deficient number, since it is larger than the sum of its proper divisors (17651362153).

75241994615 is a wasteful number, since it uses less digits than its factorization.

75241994615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076898.

The product of its digits is 2721600, while the sum is 53.

The spelling of 75241994615 in words is "seventy-five billion, two hundred forty-one million, nine hundred ninety-four thousand, six hundred fifteen".