71729378876 has 12 divisors (see below), whose sum is σ = 132910319808. Its totient is φ = 33755001792.

The previous prime is 71729378839. The next prime is 71729378879. The reversal of 71729378876 is 67887392717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71729378879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527421836 + ... + 527421971.

It is an arithmetic number, because the mean of its divisors is an integer number (11075859984).

Almost surely, 2^71729378876 is an apocalyptic number.

It is an amenable number.

71729378876 is a deficient number, since it is larger than the sum of its proper divisors (61180940932).

71729378876 is a wasteful number, since it uses less digits than its factorization.

71729378876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054843828 (or 1054843826 counting only the distinct ones).

The product of its digits is 49787136, while the sum is 65.

The spelling of 71729378876 in words is "seventy-one billion, seven hundred twenty-nine million, three hundred seventy-eight thousand, eight hundred seventy-six".