71384052870 has 64 divisors (see below), whose sum is σ = 205000367040. Its totient is φ = 17571458304.

The previous prime is 71384052853. The next prime is 71384052913. The reversal of 71384052870 is 7825048317.

71384052870 is a `hidden beast` number, since 7 + 13 + 8 + 40 + 528 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10165159 + ... + 10172178.

It is an arithmetic number, because the mean of its divisors is an integer number (3203130735).

Almost surely, 2^71384052870 is an apocalyptic number.

71384052870 is an abundant number, since it is smaller than the sum of its proper divisors (133616314170).

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

71384052870 is a wasteful number, since it uses less digits than its factorization.

71384052870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20337366 (or 20337360 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 71384052870 in words is "seventy-one billion, three hundred eighty-four million, fifty-two thousand, eight hundred seventy".