51441451156 has 6 divisors (see below), whose sum is σ = 90022539530. Its totient is φ = 25720725576.

The previous prime is 51441451129. The next prime is 51441451231. The reversal of 51441451156 is 65115414415.

It can be written as a sum of positive squares in only one way, i.e., 41317066756 + 10124384400 = 203266^2 + 100620^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430181391 + ... + 6430181398.

Almost surely, 2^51441451156 is an apocalyptic number.

It is an amenable number.

51441451156 is a deficient number, since it is larger than the sum of its proper divisors (38581088374).

51441451156 is a wasteful number, since it uses less digits than its factorization.

51441451156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12860362793 (or 12860362791 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The spelling of 51441451156 in words is "fifty-one billion, four hundred forty-one million, four hundred fifty-one thousand, one hundred fifty-six".