50978847684 has 24 divisors (see below), whose sum is σ = 118994597568. Its totient is φ = 16986670240.

The previous prime is 50978847683. The next prime is 50978847691. The reversal of 50978847684 is 48674887905.

It is a happy number.

It is a super-2 number, since 2×50978847684² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50978847683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750987 + ... + 816050.

It is an arithmetic number, because the mean of its divisors is an integer number (4958108232).

Almost surely, 2^50978847684 is an apocalyptic number.

It is an amenable number.

50978847684 is an abundant number, since it is smaller than the sum of its proper divisors (68015749884).

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

50978847684 is a wasteful number, since it uses less digits than its factorization.

50978847684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569755 (or 1569753 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 66.

The spelling of 50978847684 in words is "fifty billion, nine hundred seventy-eight million, eight hundred forty-seven thousand, six hundred eighty-four".