51346443155 has 16 divisors (see below), whose sum is σ = 71855083200. Its totient is φ = 35208988416.

The previous prime is 51346443151. The next prime is 51346443157. The reversal of 51346443155 is 55134464315.

It is not a de Polignac number, because 51346443155 - 2² = 51346443151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51346443151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14968094 + ... + 14971523.

It is an arithmetic number, because the mean of its divisors is an integer number (4490942700).

Almost surely, 2^51346443155 is an apocalyptic number.

51346443155 is a deficient number, since it is larger than the sum of its proper divisors (20508640045).

51346443155 is an equidigital number, since it uses as much as digits as its factorization.

51346443155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29939643 (or 29939629 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The spelling of 51346443155 in words is "fifty-one billion, three hundred forty-six million, four hundred forty-three thousand, one hundred fifty-five".