51957446390 has 32 divisors (see below), whose sum is σ = 96958796256. Its totient is φ = 20031773440.

The previous prime is 51957446389. The next prime is 51957446441. The reversal of 51957446390 is 9364475915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729377 + ... + 797436.

It is an arithmetic number, because the mean of its divisors is an integer number (3029962383).

Almost surely, 2^51957446390 is an apocalyptic number.

51957446390 is a deficient number, since it is larger than the sum of its proper divisors (45001349866).

51957446390 is a wasteful number, since it uses less digits than its factorization.

51957446390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526944.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 51957446390 in words is "fifty-one billion, nine hundred fifty-seven million, four hundred forty-six thousand, three hundred ninety".