51149462146 has 8 divisors (see below), whose sum is σ = 77001176700. Its totient is φ = 25482403248.

The previous prime is 51149462087. The next prime is 51149462159. The reversal of 51149462146 is 64126494115.

It can be written as a sum of positive squares in 2 ways, for example, as 51148797921 + 664225 = 226161^2 + 815^2 .

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

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, 46163221 + ... + 46164328.

Almost surely, 2^51149462146 is an apocalyptic number.

51149462146 is a deficient number, since it is larger than the sum of its proper divisors (25851714554).

51149462146 is a wasteful number, since it uses less digits than its factorization.

51149462146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92327828.

The product of its digits is 207360, while the sum is 43.

The spelling of 51149462146 in words is "fifty-one billion, one hundred forty-nine million, four hundred sixty-two thousand, one hundred forty-six".