70871771268 has 18 divisors (see below), whose sum is σ = 179148088574. Its totient is φ = 23623923744.

The previous prime is 70871771227. The next prime is 70871771273. The reversal of 70871771268 is 86217717807.

It can be written as a sum of positive squares in only one way, i.e., 66836726784 + 4035044484 = 258528^2 + 63522^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 984330121 + ... + 984330192.

Almost surely, 2^70871771268 is an apocalyptic number.

It is an amenable number.

70871771268 is an abundant number, since it is smaller than the sum of its proper divisors (108276317306).

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

70871771268 is a wasteful number, since it uses less digits than its factorization.

70871771268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968660323 (or 1968660318 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 54.

The spelling of 70871771268 in words is "seventy billion, eight hundred seventy-one million, seven hundred seventy-one thousand, two hundred sixty-eight".