71273606036730 has 128 divisors (see below), whose sum is σ = 177662859411456. Its totient is φ = 18280007251200.

The previous prime is 71273606036713. The next prime is 71273606036803. The reversal of 71273606036730 is 3763060637217.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192899244 + ... + 193268376.

It is an arithmetic number, because the mean of its divisors is an integer number (1387991089152).

Almost surely, 2^{71273606036730} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71273606036730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88831429705728).

71273606036730 is an abundant number, since it is smaller than the sum of its proper divisors (106389253374726).

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

71273606036730 is a wasteful number, since it uses less digits than its factorization.

71273606036730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370452.

The product of its (nonzero) digits is 4000752, while the sum is 51.

The spelling of 71273606036730 in words is "seventy-one trillion, two hundred seventy-three billion, six hundred six million, thirty-six thousand, seven hundred thirty".