50981762397 has 16 divisors (see below), whose sum is σ = 68352327680. Its totient is φ = 33799777200.

The previous prime is 50981762393. The next prime is 50981762423. The reversal of 50981762397 is 79326718905.

It is not a de Polignac number, because 50981762397 - 2² = 50981762393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50981762393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778122 + ... + 841092.

It is an arithmetic number, because the mean of its divisors is an integer number (4272020480).

Almost surely, 2^50981762397 is an apocalyptic number.

It is an amenable number.

50981762397 is a deficient number, since it is larger than the sum of its proper divisors (17370565283).

50981762397 is a wasteful number, since it uses less digits than its factorization.

50981762397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64464.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 50981762397 in words is "fifty billion, nine hundred eighty-one million, seven hundred sixty-two thousand, three hundred ninety-seven".