71429292870 has 128 divisors (see below), whose sum is σ = 197833757184. Its totient is φ = 16348821504.

The previous prime is 71429292841. The next prime is 71429292881. The reversal of 71429292870 is 7829292417.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 485389 + ... + 615191.

It is an arithmetic number, because the mean of its divisors is an integer number (1545576228).

Almost surely, 2^71429292870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71429292870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98916878592).

71429292870 is an abundant number, since it is smaller than the sum of its proper divisors (126404464314).

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

71429292870 is a wasteful number, since it uses less digits than its factorization.

71429292870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129926.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 71429292870 in words is "seventy-one billion, four hundred twenty-nine million, two hundred ninety-two thousand, eight hundred seventy".