73947479958 has 144 divisors (see below), whose sum is σ = 187081811280. Its totient is φ = 21634018560.

The previous prime is 73947479917. The next prime is 73947479981. The reversal of 73947479958 is 85997474937.

73947479958 is a `hidden beast` number, since 7 + 39 + 474 + 79 + 9 + 58 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5488366 + ... + 5501822.

It is an arithmetic number, because the mean of its divisors is an integer number (1299179245).

Almost surely, 2^73947479958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73947479958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93540905640).

73947479958 is an abundant number, since it is smaller than the sum of its proper divisors (113134331322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73947479958 is a wasteful number, since it uses less digits than its factorization.

73947479958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548 (or 13502 counting only the distinct ones).

The product of its digits is 480090240, while the sum is 72.

The spelling of 73947479958 in words is "seventy-three billion, nine hundred forty-seven million, four hundred seventy-nine thousand, nine hundred fifty-eight".