51147371153 has 4 divisors (see below), whose sum is σ = 51153675888. Its totient is φ = 51141066420.

The previous prime is 51147371131. The next prime is 51147371159. The reversal of 51147371153 is 35117374115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51147371153 - 2¹² = 51147367057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51147371159) 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, 3140183 + ... + 3156428.

It is an arithmetic number, because the mean of its divisors is an integer number (12788418972).

Almost surely, 2^51147371153 is an apocalyptic number.

It is an amenable number.

51147371153 is a deficient number, since it is larger than the sum of its proper divisors (6304735).

51147371153 is an equidigital number, since it uses as much as digits as its factorization.

51147371153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304734.

The product of its digits is 44100, while the sum is 38.

The spelling of 51147371153 in words is "fifty-one billion, one hundred forty-seven million, three hundred seventy-one thousand, one hundred fifty-three".