51473638315 has 16 divisors (see below), whose sum is σ = 67576773600. Its totient is φ = 37328094720.

The previous prime is 51473638259. The next prime is 51473638327. The reversal of 51473638315 is 51383637415.

It is not a de Polignac number, because 51473638315 - 2¹³ = 51473630123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321614 + ... + 1360003.

It is an arithmetic number, because the mean of its divisors is an integer number (4223548350).

Almost surely, 2^51473638315 is an apocalyptic number.

51473638315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51473638315 is a deficient number, since it is larger than the sum of its proper divisors (16103135285).

51473638315 is a wasteful number, since it uses less digits than its factorization.

51473638315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681982.

The product of its digits is 907200, while the sum is 46.

The spelling of 51473638315 in words is "fifty-one billion, four hundred seventy-three million, six hundred thirty-eight thousand, three hundred fifteen".