75012421043 has 16 divisors (see below), whose sum is σ = 86840448000. Its totient is φ = 63462889152.

The previous prime is 75012421039. The next prime is 75012421079. The reversal of 75012421043 is 34012421057.

It is a cyclic number.

It is not a de Polignac number, because 75012421043 - 2² = 75012421039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75012420997 and 75012421015.

It is not an unprimeable number, because it can be changed into a prime (75012421093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1937903 + ... + 1976231.

It is an arithmetic number, because the mean of its divisors is an integer number (5427528000).

Almost surely, 2^75012421043 is an apocalyptic number.

75012421043 is a deficient number, since it is larger than the sum of its proper divisors (11828026957).

75012421043 is a wasteful number, since it uses less digits than its factorization.

75012421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41954.

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 75012421043 in words is "seventy-five billion, twelve million, four hundred twenty-one thousand, forty-three".