51071992350 has 48 divisors (see below), whose sum is σ = 129747789360. Its totient is φ = 13287020800.

The previous prime is 51071992319. The next prime is 51071992357. The reversal of 51071992350 is 5329917015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51071992357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4146045 + ... + 4158344.

It is an arithmetic number, because the mean of its divisors is an integer number (2703078945).

Almost surely, 2^51071992350 is an apocalyptic number.

51071992350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51071992350 is an abundant number, since it is smaller than the sum of its proper divisors (78675797010).

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

51071992350 is a wasteful number, since it uses less digits than its factorization.

51071992350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304445 (or 8304440 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 42.

The spelling of 51071992350 in words is "fifty-one billion, seventy-one million, nine hundred ninety-two thousand, three hundred fifty".