71345807142 has 32 divisors (see below), whose sum is σ = 143864328960. Its totient is φ = 23586694560.

The previous prime is 71345807123. The next prime is 71345807149. The reversal of 71345807142 is 24170854317.

It is a junction number, because it is equal to n+sod(n) for n = 71345807094 and 71345807103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71345807149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375984 + ... + 1426892.

It is an arithmetic number, because the mean of its divisors is an integer number (4495760280).

Almost surely, 2^71345807142 is an apocalyptic number.

71345807142 is an abundant number, since it is smaller than the sum of its proper divisors (72518521818).

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

71345807142 is a wasteful number, since it uses less digits than its factorization.

71345807142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52828.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 71345807142 in words is "seventy-one billion, three hundred forty-five million, eight hundred seven thousand, one hundred forty-two".