73158812496 has 280 divisors, whose sum is σ = 264963975744. Its totient is φ = 19002055680.

The previous prime is 73158812491. The next prime is 73158812501. The reversal of 73158812496 is 69421885137.

73158812496 is a `hidden beast` number, since 7 + 3 + 1 + 588 + 12 + 49 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (73158812491) and next prime (73158812501).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73158812491) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 857400 + ... + 938856.

Almost surely, 2^73158812496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73158812496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132481987872).

73158812496 is an abundant number, since it is smaller than the sum of its proper divisors (191805163248).

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

73158812496 is a wasteful number, since it uses less digits than its factorization.

73158812496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81501 (or 81480 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 73158812496 in words is "seventy-three billion, one hundred fifty-eight million, eight hundred twelve thousand, four hundred ninety-six".