50978235654 has 24 divisors (see below), whose sum is σ = 114543691080. Its totient is φ = 16992745056.

The previous prime is 50978235653. The next prime is 50978235689. The reversal of 50978235654 is 45653287905.

50978235654 is a `hidden beast` number, since 5 + 0 + 9 + 78 + 2 + 3 + 565 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 50978235654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50978235653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52446259 + ... + 52447230.

It is an arithmetic number, because the mean of its divisors is an integer number (4772653795).

Almost surely, 2^50978235654 is an apocalyptic number.

50978235654 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

50978235654 is an abundant number, since it is smaller than the sum of its proper divisors (63565455426).

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

50978235654 is a wasteful number, since it uses less digits than its factorization.

50978235654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104893506 (or 104893494 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 50978235654 in words is "fifty billion, nine hundred seventy-eight million, two hundred thirty-five thousand, six hundred fifty-four".