71301050820 has 192 divisors, whose sum is σ = 240603955200. Its totient is φ = 17458606080.

The previous prime is 71301050797. The next prime is 71301050831. The reversal of 71301050820 is 2805010317.

71301050820 is a `hidden beast` number, since 7 + 130 + 1 + 0 + 508 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 281661 + ... + 471099.

It is an arithmetic number, because the mean of its divisors is an integer number (1253145600).

Almost surely, 2^71301050820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71301050820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120301977600).

71301050820 is an abundant number, since it is smaller than the sum of its proper divisors (169302904380).

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

71301050820 is a wasteful number, since it uses less digits than its factorization.

71301050820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189515 (or 189507 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 71301050820 in words is "seventy-one billion, three hundred one million, fifty thousand, eight hundred twenty".