75072742215 has 8 divisors (see below), whose sum is σ = 120116387568. Its totient is φ = 40038795840.

The previous prime is 75072742193. The next prime is 75072742223. The reversal of 75072742215 is 51224727057.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75072742215 - 2³² = 70777774919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502424726 + ... + 2502424755.

It is an arithmetic number, because the mean of its divisors is an integer number (15014548446).

Almost surely, 2^75072742215 is an apocalyptic number.

75072742215 is a deficient number, since it is larger than the sum of its proper divisors (45043645353).

75072742215 is a wasteful number, since it uses less digits than its factorization.

75072742215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004849489.

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 75072742215 in words is "seventy-five billion, seventy-two million, seven hundred forty-two thousand, two hundred fifteen".