51134502154 has 8 divisors (see below), whose sum is σ = 76702735620. Its totient is φ = 25566923616.

The previous prime is 51134502149. The next prime is 51134502163. The reversal of 51134502154 is 45120543115.

It can be written as a sum of positive squares in 2 ways, for example, as 42830372025 + 8304130129 = 206955^2 + 91127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51134502154² (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 3 ways as a sum of consecutive naturals, for example, 157542 + ... + 356494.

Almost surely, 2^51134502154 is an apocalyptic number.

51134502154 is a deficient number, since it is larger than the sum of its proper divisors (25568233466).

51134502154 is a wasteful number, since it uses less digits than its factorization.

51134502154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327464.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 51134502154 in words is "fifty-one billion, one hundred thirty-four million, five hundred two thousand, one hundred fifty-four".