71874649279 has 8 divisors (see below), whose sum is σ = 74607242688. Its totient is φ = 69192195360.

The previous prime is 71874649243. The next prime is 71874649309. The reversal of 71874649279 is 97294647817.

It is a happy number.

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 71874649279 - 2¹³ = 71874641087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71874649279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71874649229) 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 7 ways as a sum of consecutive naturals, for example, 12531952 + ... + 12537685.

It is an arithmetic number, because the mean of its divisors is an integer number (9325905336).

Almost surely, 2^71874649279 is an apocalyptic number.

71874649279 is a deficient number, since it is larger than the sum of its proper divisors (2732593409).

71874649279 is a wasteful number, since it uses less digits than its factorization.

71874649279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25069745.

The product of its digits is 42674688, while the sum is 64.

The spelling of 71874649279 in words is "seventy-one billion, eight hundred seventy-four million, six hundred forty-nine thousand, two hundred seventy-nine".