47136781471 has 8 divisors (see below), whose sum is σ = 50777403264. Its totient is φ = 43498261920.

The previous prime is 47136781469. The next prime is 47136781519. The reversal of 47136781471 is 17418763174.

It is a happy number.

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 47136781471 - 2¹ = 47136781469 is a prime.

It is a super-3 number, since 3×47136781471³ (a number of 33 digits) contains 333 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 (47136781871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478831 + ... + 568816.

It is an arithmetic number, because the mean of its divisors is an integer number (6347175408).

Almost surely, 2^47136781471 is an apocalyptic number.

47136781471 is a deficient number, since it is larger than the sum of its proper divisors (3640621793).

47136781471 is a wasteful number, since it uses less digits than its factorization.

47136781471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051121.

The product of its digits is 790272, while the sum is 49.

The spelling of 47136781471 in words is "forty-seven billion, one hundred thirty-six million, seven hundred eighty-one thousand, four hundred seventy-one".