74949358687 has 16 divisors (see below), whose sum is σ = 89685711360. Its totient is φ = 61239400992.

The previous prime is 74949358633. The next prime is 74949358711. The reversal of 74949358687 is 78685394947.

It is a happy number.

It is not a de Polignac number, because 74949358687 - 2⁷ = 74949358559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74943358687) 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, 747237 + ... + 841582.

It is an arithmetic number, because the mean of its divisors is an integer number (5605356960).

Almost surely, 2^74949358687 is an apocalyptic number.

74949358687 is a deficient number, since it is larger than the sum of its proper divisors (14736352673).

74949358687 is a wasteful number, since it uses less digits than its factorization.

74949358687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589142.

The product of its digits is 365783040, while the sum is 70.

The spelling of 74949358687 in words is "seventy-four billion, nine hundred forty-nine million, three hundred fifty-eight thousand, six hundred eighty-seven".