51492471000 has 128 divisors (see below), whose sum is σ = 160794279360. Its totient is φ = 13719552000.

The previous prime is 51492470987. The next prime is 51492471091. The reversal of 51492471000 is 17429415.

It is a happy number.

51492471000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51492471000³ (a number of 33 digits) contains 333 as substring.

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, 3824280 + ... + 3837720.

Almost surely, 2^51492471000 is an apocalyptic number.

51492471000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51492471000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80397139680).

51492471000 is an abundant number, since it is smaller than the sum of its proper divisors (109301808360).

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

51492471000 is a wasteful number, since it uses less digits than its factorization.

51492471000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14742 (or 14728 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 51492471000 in words is "fifty-one billion, four hundred ninety-two million, four hundred seventy-one thousand".