71651840350000 has 120 divisors (see below), whose sum is σ = 175964656978656. Its totient is φ = 28257062400000.

The previous prime is 71651840349977. The next prime is 71651840350001. The reversal of 71651840350000 is 5304815617.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (71651840350001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6541809 + ... + 13641808.

Almost surely, 2^{71651840350000} is an apocalyptic number.

It is an amenable number.

71651840350000 is an abundant number, since it is smaller than the sum of its proper divisors (104312816628656).

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

71651840350000 is an equidigital number, since it uses as much as digits as its factorization.

71651840350000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20183721 (or 20183695 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 71651840350000 in words is "seventy-one trillion, six hundred fifty-one billion, eight hundred forty million, three hundred fifty thousand".