47636498669 has 4 divisors (see below), whose sum is σ = 48923971644. Its totient is φ = 46349025696.

The previous prime is 47636498629. The next prime is 47636498681. The reversal of 47636498669 is 96689463674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23877975625 + 23758523044 = 154525^2 + 154138^2 .

It is a cyclic number.

It is not a de Polignac number, because 47636498669 - 2²⁴ = 47619721453 is a prime.

It is a super-2 number, since 2×47636498669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47636498599 and 47636498608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47636498629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643736432 + ... + 643736505.

It is an arithmetic number, because the mean of its divisors is an integer number (12230992911).

Almost surely, 2^47636498669 is an apocalyptic number.

It is an amenable number.

47636498669 is a deficient number, since it is larger than the sum of its proper divisors (1287472975).

47636498669 is a wasteful number, since it uses less digits than its factorization.

47636498669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287472974.

The product of its digits is 282175488, while the sum is 68.

The spelling of 47636498669 in words is "forty-seven billion, six hundred thirty-six million, four hundred ninety-eight thousand, six hundred sixty-nine".