50743256138 has 8 divisors (see below), whose sum is σ = 77362669380. Its totient is φ = 24955699680.

The previous prime is 50743256107. The next prime is 50743256159. The reversal of 50743256138 is 83165234705.

It can be written as a sum of positive squares in 2 ways, for example, as 30865921969 + 19877334169 = 175687^2 + 140987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207964043 + ... + 207964286.

Almost surely, 2^50743256138 is an apocalyptic number.

50743256138 is a deficient number, since it is larger than the sum of its proper divisors (26619413242).

50743256138 is a wasteful number, since it uses less digits than its factorization.

50743256138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415928392.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 50743256138 in words is "fifty billion, seven hundred forty-three million, two hundred fifty-six thousand, one hundred thirty-eight".