76499849816 has 64 divisors (see below), whose sum is σ = 158054803200. Its totient is φ = 34495797888.

The previous prime is 76499849761. The next prime is 76499849827. The reversal of 76499849816 is 61894899467.

It is a self number, because there is not a number n which added to its sum of digits gives 76499849816.

It is a congruent number.

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, 961925 + ... + 1038411.

It is an arithmetic number, because the mean of its divisors is an integer number (2469606300).

Almost surely, 2^76499849816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76499849816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79027401600).

76499849816 is an abundant number, since it is smaller than the sum of its proper divisors (81554953384).

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

76499849816 is a wasteful number, since it uses less digits than its factorization.

76499849816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76728 (or 76724 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 71.

The spelling of 76499849816 in words is "seventy-six billion, four hundred ninety-nine million, eight hundred forty-nine thousand, eight hundred sixteen".