71934140361486 has 64 divisors (see below), whose sum is σ = 155967685429248. Its totient is φ = 21986243720448.

The previous prime is 71934140361481. The next prime is 71934140361491. The reversal of 71934140361486 is 68416304143917.

It is an interprime number because it is at equal distance from previous prime (71934140361481) and next prime (71934140361491).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71934140361481) 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, 17512786 + ... + 21226538.

It is an arithmetic number, because the mean of its divisors is an integer number (2436995084832).

Almost surely, 2^{71934140361486} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71934140361486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77983842714624).

71934140361486 is an abundant number, since it is smaller than the sum of its proper divisors (84033545067762).

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

71934140361486 is a wasteful number, since it uses less digits than its factorization.

71934140361486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715425.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 71934140361486 in words is "seventy-one trillion, nine hundred thirty-four billion, one hundred forty million, three hundred sixty-one thousand, four hundred eighty-six".