51154845115 has 48 divisors (see below), whose sum is σ = 69010784640. Its totient is φ = 36365472000.

The previous prime is 51154845103. The next prime is 51154845127.

51154845115 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (51154845103) and next prime (51154845127).

It is not a de Polignac number, because 51154845115 - 2¹⁹ = 51154320827 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4821997 + ... + 4832593.

It is an arithmetic number, because the mean of its divisors is an integer number (1437724680).

Almost surely, 2^51154845115 is an apocalyptic number.

51154845115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51154845115 is a deficient number, since it is larger than the sum of its proper divisors (17855939525).

51154845115 is a wasteful number, since it uses less digits than its factorization.

51154845115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10804 (or 10793 counting only the distinct ones).

The product of its digits is 80000, while the sum is 40.

The spelling of 51154845115 in words is "fifty-one billion, one hundred fifty-four million, eight hundred forty-five thousand, one hundred fifteen".