51123531354 has 32 divisors (see below), whose sum is σ = 116860488576. Its totient is φ = 14605885440.

The previous prime is 51123531341. The next prime is 51123531377. The reversal of 51123531354 is 45313532115.

It is a super-2 number, since 2×51123531354² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398234 + ... + 1434330.

It is an arithmetic number, because the mean of its divisors is an integer number (3651890268).

Almost surely, 2^51123531354 is an apocalyptic number.

51123531354 is an abundant number, since it is smaller than the sum of its proper divisors (65736957222).

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

51123531354 is a wasteful number, since it uses less digits than its factorization.

51123531354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69830.

The product of its digits is 27000, while the sum is 33.

The spelling of 51123531354 in words is "fifty-one billion, one hundred twenty-three million, five hundred thirty-one thousand, three hundred fifty-four".