71088260642440 has 64 divisors (see below), whose sum is σ = 162203439496320. Its totient is φ = 28034451648000.

The previous prime is 71088260642363. The next prime is 71088260642519. The reversal of 71088260642440 is 4424606288017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417170455 + ... + 417340825.

It is an arithmetic number, because the mean of its divisors is an integer number (2534428742130).

Almost surely, 2^{71088260642440} is an apocalyptic number.

It is an amenable number.

71088260642440 is an abundant number, since it is smaller than the sum of its proper divisors (91115178853880).

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

71088260642440 is a wasteful number, since it uses less digits than its factorization.

71088260642440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317374 (or 317370 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 52.

The spelling of 71088260642440 in words is "seventy-one trillion, eighty-eight billion, two hundred sixty million, six hundred forty-two thousand, four hundred forty".