70971258771 has 24 divisors (see below), whose sum is σ = 123325163520. Its totient is φ = 38420530416.

The previous prime is 70971258767. The next prime is 70971258797. The reversal of 70971258771 is 17785217907.

It is not a de Polignac number, because 70971258771 - 2² = 70971258767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70971258731) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 29644275 + ... + 29646668.

It is an arithmetic number, because the mean of its divisors is an integer number (5138548480).

Almost surely, 2^70971258771 is an apocalyptic number.

70971258771 is a deficient number, since it is larger than the sum of its proper divisors (52353904749).

70971258771 is a wasteful number, since it uses less digits than its factorization.

70971258771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59290975 (or 59290972 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 54.

The spelling of 70971258771 in words is "seventy billion, nine hundred seventy-one million, two hundred fifty-eight thousand, seven hundred seventy-one".