71078211215 has 32 divisors (see below), whose sum is σ = 98692957440. Its totient is φ = 48598617600.

The previous prime is 71078211181. The next prime is 71078211221. The reversal of 71078211215 is 51211287017.

It is not a de Polignac number, because 71078211215 - 2¹⁸ = 71077949071 is a prime.

It is a super-2 number, since 2×71078211215² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 122714 + ... + 396503.

It is an arithmetic number, because the mean of its divisors is an integer number (3084154920).

Almost surely, 2^71078211215 is an apocalyptic number.

71078211215 is a deficient number, since it is larger than the sum of its proper divisors (27614746225).

71078211215 is a wasteful number, since it uses less digits than its factorization.

71078211215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519383.

The product of its (nonzero) digits is 7840, while the sum is 35.

The spelling of 71078211215 in words is "seventy-one billion, seventy-eight million, two hundred eleven thousand, two hundred fifteen".