76728865950 has 576 divisors, whose sum is σ = 246659212800. Its totient is φ = 17551987200.

The previous prime is 76728865949. The next prime is 76728865999. The reversal of 76728865950 is 5956882767.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 335060436 + ... + 335060664.

It is an arithmetic number, because the mean of its divisors is an integer number (428227800).

Almost surely, 2^76728865950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76728865950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123329606400).

76728865950 is an abundant number, since it is smaller than the sum of its proper divisors (169930346850).

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

76728865950 is a wasteful number, since it uses less digits than its factorization.

76728865950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 63.

The spelling of 76728865950 in words is "seventy-six billion, seven hundred twenty-eight million, eight hundred sixty-five thousand, nine hundred fifty".