51154113521104 has 20 divisors (see below), whose sum is σ = 108121194488160. Its totient is φ = 23251869782240.

The previous prime is 51154113521089. The next prime is 51154113521107. The reversal of 51154113521104 is 40112531145115.

It is a self number, because there is not a number n which added to its sum of digits gives 51154113521104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51154113521107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145324185964 + ... + 145324186315.

It is an arithmetic number, because the mean of its divisors is an integer number (5406059724408).

Almost surely, 2^{51154113521104} is an apocalyptic number.

It is an amenable number.

51154113521104 is an abundant number, since it is smaller than the sum of its proper divisors (56967080967056).

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

51154113521104 is a wasteful number, since it uses less digits than its factorization.

51154113521104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290648372298 (or 290648372292 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 34.

Adding to 51154113521104 its reverse (40112531145115), we get a palindrome (91266644666219).

The spelling of 51154113521104 in words is "fifty-one trillion, one hundred fifty-four billion, one hundred thirteen million, five hundred twenty-one thousand, one hundred four".