47531415781465 has 64 divisors (see below), whose sum is σ = 72323110379520. Its totient is φ = 29125399415040.

The previous prime is 47531415781397. The next prime is 47531415781471. The reversal of 47531415781465 is 56418751413574.

It is not a de Polignac number, because 47531415781465 - 2¹⁵ = 47531415748697 is a prime.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 302644299 + ... + 302801311.

It is an arithmetic number, because the mean of its divisors is an integer number (1130048599680).

Almost surely, 2^{47531415781465} is an apocalyptic number.

It is an amenable number.

47531415781465 is a deficient number, since it is larger than the sum of its proper divisors (24791694598055).

47531415781465 is a wasteful number, since it uses less digits than its factorization.

47531415781465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170422.

The product of its digits is 56448000, while the sum is 61.

The spelling of 47531415781465 in words is "forty-seven trillion, five hundred thirty-one billion, four hundred fifteen million, seven hundred eighty-one thousand, four hundred sixty-five".