71381874140 has 24 divisors (see below), whose sum is σ = 151707986640. Its totient is φ = 28208739968.

The previous prime is 71381874103. The next prime is 71381874211. The reversal of 71381874140 is 4147818317.

It is a junction number, because it is equal to n+sod(n) for n = 71381874091 and 71381874100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21498905 + ... + 21502224.

It is an arithmetic number, because the mean of its divisors is an integer number (6321166110).

Almost surely, 2^71381874140 is an apocalyptic number.

It is an amenable number.

71381874140 is an abundant number, since it is smaller than the sum of its proper divisors (80326112500).

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

71381874140 is a wasteful number, since it uses less digits than its factorization.

71381874140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43001221 (or 43001219 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 71381874140 in words is "seventy-one billion, three hundred eighty-one million, eight hundred seventy-four thousand, one hundred forty".