51415047470 has 16 divisors (see below), whose sum is σ = 97417985040. Its totient is φ = 19483596864.

The previous prime is 51415047443. The next prime is 51415047493. The reversal of 51415047470 is 7474051415.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135302567 + ... + 135302946.

It is an arithmetic number, because the mean of its divisors is an integer number (6088624065).

Almost surely, 2^51415047470 is an apocalyptic number.

51415047470 is a deficient number, since it is larger than the sum of its proper divisors (46002937570).

51415047470 is a wasteful number, since it uses less digits than its factorization.

51415047470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270605539.

The product of its (nonzero) digits is 78400, while the sum is 38.

Adding to 51415047470 its reverse (7474051415), we get a palindrome (58889098885).

The spelling of 51415047470 in words is "fifty-one billion, four hundred fifteen million, forty-seven thousand, four hundred seventy".