75866684149 has 8 divisors (see below), whose sum is σ = 76089697920. Its totient is φ = 75643736016.

The previous prime is 75866684119. The next prime is 75866684161. The reversal of 75866684149 is 94148666857.

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

It is a cyclic number.

It is not a de Polignac number, because 75866684149 - 2²¹ = 75864586997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75866684119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223944 + ... + 3247390.

It is an arithmetic number, because the mean of its divisors is an integer number (9511212240).

Almost surely, 2^75866684149 is an apocalyptic number.

It is an amenable number.

75866684149 is a deficient number, since it is larger than the sum of its proper divisors (223013771).

75866684149 is a wasteful number, since it uses less digits than its factorization.

75866684149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32819.

The product of its digits is 69672960, while the sum is 64.

The spelling of 75866684149 in words is "seventy-five billion, eight hundred sixty-six million, six hundred eighty-four thousand, one hundred forty-nine".