71140670448 has 80 divisors (see below), whose sum is σ = 184908153216. Its totient is φ = 23568364800.

The previous prime is 71140670411. The next prime is 71140670449. The reversal of 71140670448 is 84407604117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71140670449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6673923 + ... + 6684573.

Almost surely, 2^71140670448 is an apocalyptic number.

It is an amenable number.

71140670448 is an abundant number, since it is smaller than the sum of its proper divisors (113767482768).

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

71140670448 is a wasteful number, since it uses less digits than its factorization.

71140670448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502 (or 11496 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 71140670448 in words is "seventy-one billion, one hundred forty million, six hundred seventy thousand, four hundred forty-eight".