71283490652140 has 96 divisors (see below), whose sum is σ = 162732442340160. Its totient is φ = 26071682098176.

The previous prime is 71283490652117. The next prime is 71283490652147. The reversal of 71283490652140 is 4125609438217.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (71283490652147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107275759 + ... + 107938201.

It is an arithmetic number, because the mean of its divisors is an integer number (1695129607710).

It is a 1-persistent number, because it is pandigital, but 2⋅71283490652140 = 142566981304280 is not.

Almost surely, 2^{71283490652140} 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 71283490652140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81366221170080).

71283490652140 is an abundant number, since it is smaller than the sum of its proper divisors (91448951688020).

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

71283490652140 is a wasteful number, since it uses less digits than its factorization.

71283490652140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666371 (or 666369 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 71283490652140 in words is "seventy-one trillion, two hundred eighty-three billion, four hundred ninety million, six hundred fifty-two thousand, one hundred forty".