51408146460 has 96 divisors (see below), whose sum is σ = 157139668224. Its totient is φ = 12453760000.

The previous prime is 51408146443. The next prime is 51408146473. The reversal of 51408146460 is 6464180415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930820 + ... + 984500.

It is an arithmetic number, because the mean of its divisors is an integer number (1636871544).

Almost surely, 2^51408146460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51408146460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78569834112).

51408146460 is an abundant number, since it is smaller than the sum of its proper divisors (105731521764).

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

51408146460 is a wasteful number, since it uses less digits than its factorization.

51408146460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55155 (or 55153 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 51408146460 in words is "fifty-one billion, four hundred eight million, one hundred forty-six thousand, four hundred sixty".