47987061361 has 4 divisors (see below), whose sum is σ = 47994364132. Its totient is φ = 47979758592.

The previous prime is 47987061359. The next prime is 47987061427. The reversal of 47987061361 is 16316078974.

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 39800250000 + 8186811361 = 199500^2 + 90481^2 .

It is a cyclic number.

It is not a de Polignac number, because 47987061361 - 2¹ = 47987061359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47987061299 and 47987061308.

It is not an unprimeable number, because it can be changed into a prime (47987067361) 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, 3641520 + ... + 3654673.

It is an arithmetic number, because the mean of its divisors is an integer number (11998591033).

Almost surely, 2^47987061361 is an apocalyptic number.

It is an amenable number.

47987061361 is a deficient number, since it is larger than the sum of its proper divisors (7302771).

47987061361 is an equidigital number, since it uses as much as digits as its factorization.

47987061361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302770.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 47987061361 in words is "forty-seven billion, nine hundred eighty-seven million, sixty-one thousand, three hundred sixty-one".