51331483372 has 36 divisors (see below), whose sum is σ = 97463399040. Its totient is φ = 23644750272.

The previous prime is 51331483363. The next prime is 51331483373. The reversal of 51331483372 is 27338413315.

It is not an unprimeable number, because it can be changed into a prime (51331483373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269493 + ... + 418675.

It is an arithmetic number, because the mean of its divisors is an integer number (2707316640).

Almost surely, 2^51331483372 is an apocalyptic number.

51331483372 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51331483372 is a deficient number, since it is larger than the sum of its proper divisors (46131915668).

51331483372 is a wasteful number, since it uses less digits than its factorization.

51331483372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149722 (or 149707 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

Adding to 51331483372 its reverse (27338413315), we get a palindrome (78669896687).

The spelling of 51331483372 in words is "fifty-one billion, three hundred thirty-one million, four hundred eighty-three thousand, three hundred seventy-two".