75142405149 has 16 divisors (see below), whose sum is σ = 117295463040. Its totient is φ = 41891235840.

The previous prime is 75142405141. The next prime is 75142405153. The reversal of 75142405149 is 94150424157.

It is not a de Polignac number, because 75142405149 - 2³ = 75142405141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75142405149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75142405141) 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, 43635844 + ... + 43637565.

It is an arithmetic number, because the mean of its divisors is an integer number (7330966440).

Almost surely, 2^75142405149 is an apocalyptic number.

It is an amenable number.

75142405149 is a deficient number, since it is larger than the sum of its proper divisors (42153057891).

75142405149 is a wasteful number, since it uses less digits than its factorization.

75142405149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87273460.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 75142405149 in words is "seventy-five billion, one hundred forty-two million, four hundred five thousand, one hundred forty-nine".