73811828454 has 192 divisors, whose sum is σ = 198187347456. Its totient is φ = 18099680256.

The previous prime is 73811828429. The next prime is 73811828509. The reversal of 73811828454 is 45482811837.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73811828397 and 73811828406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5385999 + ... + 5399685.

It is an arithmetic number, because the mean of its divisors is an integer number (1032225768).

Almost surely, 2^73811828454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73811828454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99093673728).

73811828454 is an abundant number, since it is smaller than the sum of its proper divisors (124375519002).

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

73811828454 is a wasteful number, since it uses less digits than its factorization.

73811828454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13819 (or 13812 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The spelling of 73811828454 in words is "seventy-three billion, eight hundred eleven million, eight hundred twenty-eight thousand, four hundred fifty-four".