47171863704451 has 2 divisors, whose sum is σ = 47171863704452. Its totient is φ = 47171863704450.

The previous prime is 47171863704443. The next prime is 47171863704463. The reversal of 47171863704451 is 15440736817174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47171863704451 - 2³ = 47171863704443 is a prime.

It is a super-2 number, since 2×47171863704451² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47171863704401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23585931852225 + 23585931852226.

It is an arithmetic number, because the mean of its divisors is an integer number (23585931852226).

Almost surely, 2^{47171863704451} is an apocalyptic number.

47171863704451 is a deficient number, since it is larger than the sum of its proper divisors (1).

47171863704451 is an equidigital number, since it uses as much as digits as its factorization.

47171863704451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 47171863704451 in words is "forty-seven trillion, one hundred seventy-one billion, eight hundred sixty-three million, seven hundred four thousand, four hundred fifty-one".