51321744350 has 12 divisors (see below), whose sum is σ = 95458444584. Its totient is φ = 20528697720.

The previous prime is 51321744323. The next prime is 51321744407. The reversal of 51321744350 is 5344712315.

It is a self number, because there is not a number n which added to its sum of digits gives 51321744350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513217394 + ... + 513217493.

It is an arithmetic number, because the mean of its divisors is an integer number (7954870382).

Almost surely, 2^51321744350 is an apocalyptic number.

51321744350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51321744350 is a deficient number, since it is larger than the sum of its proper divisors (44136700234).

51321744350 is a wasteful number, since it uses less digits than its factorization.

51321744350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026434899 (or 1026434894 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 51321744350 in words is "fifty-one billion, three hundred twenty-one million, seven hundred forty-four thousand, three hundred fifty".