47878138463 has 8 divisors (see below), whose sum is σ = 48259178880. Its totient is φ = 47497334040.

The previous prime is 47878138457. The next prime is 47878138487. The reversal of 47878138463 is 36483187874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47878138463 - 2²⁶ = 47811029599 is a prime.

It is a super-2 number, since 2×47878138463² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47878138423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360158 + ... + 474836.

It is an arithmetic number, because the mean of its divisors is an integer number (6032397360).

Almost surely, 2^47878138463 is an apocalyptic number.

47878138463 is a deficient number, since it is larger than the sum of its proper divisors (381040417).

47878138463 is a wasteful number, since it uses less digits than its factorization.

47878138463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117997.

The product of its digits is 21676032, while the sum is 59.

The spelling of 47878138463 in words is "forty-seven billion, eight hundred seventy-eight million, one hundred thirty-eight thousand, four hundred sixty-three".