75047388442 has 8 divisors (see below), whose sum is σ = 121230396756. Its totient is φ = 34637256192.

The previous prime is 75047388421. The next prime is 75047388457. The reversal of 75047388442 is 24488374057.

It can be written as a sum of positive squares in 2 ways, for example, as 74299311241 + 748077201 = 272579^2 + 27351^2 .

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

It is a super-2 number, since 2×75047388442² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75047388442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443218983 + ... + 1443219034.

Almost surely, 2^75047388442 is an apocalyptic number.

75047388442 is a deficient number, since it is larger than the sum of its proper divisors (46183008314).

75047388442 is a wasteful number, since it uses less digits than its factorization.

75047388442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886438032.

The product of its (nonzero) digits is 6021120, while the sum is 52.

The spelling of 75047388442 in words is "seventy-five billion, forty-seven million, three hundred eighty-eight thousand, four hundred forty-two".