51145324000000 has 126 divisors (see below), whose sum is σ = 127611953499212. Its totient is φ = 20458128000000.

The previous prime is 51145323999977. The next prime is 51145324000031. The reversal of 51145324000000 is 42354115.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2393166 + ... + 10393165.

Almost surely, 2^{51145324000000} is an apocalyptic number.

51145324000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51145324000000 is an abundant number, since it is smaller than the sum of its proper divisors (76466629499212).

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

51145324000000 is an frugal number, since it uses more digits than its factorization.

51145324000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786377 (or 12786338 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 51145324000000 its reverse (42354115), we get a palindrome (51145366354115).

The spelling of 51145324000000 in words is "fifty-one trillion, one hundred forty-five billion, three hundred twenty-four million", and thus it is an aban number.