71387544746 has 32 divisors (see below), whose sum is σ = 134045591040. Its totient is φ = 27802043136.

The previous prime is 71387544703. The next prime is 71387544751. The reversal of 71387544746 is 64744578317.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71387544691 and 71387544700.

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 15 ways as a sum of consecutive naturals, for example, 5164610 + ... + 5178413.

It is an arithmetic number, because the mean of its divisors is an integer number (4188924720).

Almost surely, 2^71387544746 is an apocalyptic number.

71387544746 is a deficient number, since it is larger than the sum of its proper divisors (62658046294).

71387544746 is a wasteful number, since it uses less digits than its factorization.

71387544746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343078.

The product of its digits is 15805440, while the sum is 56.

The spelling of 71387544746 in words is "seventy-one billion, three hundred eighty-seven million, five hundred forty-four thousand, seven hundred forty-six".