47687138384 has 40 divisors (see below), whose sum is σ = 94162345992. Its totient is φ = 23387420160.

The previous prime is 47687138371. The next prime is 47687138489. The reversal of 47687138384 is 48383178674.

It can be written as a sum of positive squares in 4 ways, for example, as 4849729600 + 42837408784 = 69640^2 + 206972^2 .

It is a super-2 number, since 2×47687138384² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5746142 + ... + 5754434.

Almost surely, 2^47687138384 is an apocalyptic number.

It is an amenable number.

47687138384 is a deficient number, since it is larger than the sum of its proper divisors (46475207608).

47687138384 is a wasteful number, since it uses less digits than its factorization.

47687138384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135 (or 15129 counting only the distinct ones).

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

The spelling of 47687138384 in words is "forty-seven billion, six hundred eighty-seven million, one hundred thirty-eight thousand, three hundred eighty-four".