71678553834 has 32 divisors (see below), whose sum is σ = 148099553280. Its totient is φ = 23103673200.

The previous prime is 71678553833. The next prime is 71678553841. The reversal of 71678553834 is 43835587617.

It is not an unprimeable number, because it can be changed into a prime (71678553833) 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, 81129 + ... + 387219.

It is an arithmetic number, because the mean of its divisors is an integer number (4628111040).

Almost surely, 2^71678553834 is an apocalyptic number.

71678553834 is an abundant number, since it is smaller than the sum of its proper divisors (76420999446).

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

71678553834 is a wasteful number, since it uses less digits than its factorization.

71678553834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307386.

The product of its digits is 16934400, while the sum is 57.

The spelling of 71678553834 in words is "seventy-one billion, six hundred seventy-eight million, five hundred fifty-three thousand, eight hundred thirty-four".