75047149069 has 16 divisors (see below), whose sum is σ = 79288580800. Its totient is φ = 70835192064.

The previous prime is 75047149063. The next prime is 75047149081. The reversal of 75047149069 is 96094174057.

It is a cyclic number.

It is not a de Polignac number, because 75047149069 - 2¹³ = 75047140877 is a prime.

It is a super-2 number, since 2×75047149069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75047149063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11182687 + ... + 11189395.

It is an arithmetic number, because the mean of its divisors is an integer number (4955536300).

Almost surely, 2^75047149069 is an apocalyptic number.

It is an amenable number.

75047149069 is a deficient number, since it is larger than the sum of its proper divisors (4241431731).

75047149069 is a wasteful number, since it uses less digits than its factorization.

75047149069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 75047149069 in words is "seventy-five billion, forty-seven million, one hundred forty-nine thousand, sixty-nine".