74469739087 has 4 divisors (see below), whose sum is σ = 76482434776. Its totient is φ = 72457043400.

The previous prime is 74469739067. The next prime is 74469739109. The reversal of 74469739087 is 78093796447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78093796447 = 19 ⋅4110199813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74469739087 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 (74469739067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006347789 + ... + 1006347862.

It is an arithmetic number, because the mean of its divisors is an integer number (19120608694).

Almost surely, 2^74469739087 is an apocalyptic number.

74469739087 is a deficient number, since it is larger than the sum of its proper divisors (2012695689).

74469739087 is a wasteful number, since it uses less digits than its factorization.

74469739087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012695688.

The product of its (nonzero) digits is 64012032, while the sum is 64.

The spelling of 74469739087 in words is "seventy-four billion, four hundred sixty-nine million, seven hundred thirty-nine thousand, eighty-seven".