47747296538 has 8 divisors (see below), whose sum is σ = 73556646132. Its totient is φ = 23228414496.

The previous prime is 47747296507. The next prime is 47747296549. The reversal of 47747296538 is 83569274774.

It can be written as a sum of positive squares in 2 ways, for example, as 47531412289 + 215884249 = 218017^2 + 14693^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322616795 + ... + 322616942.

Almost surely, 2^47747296538 is an apocalyptic number.

47747296538 is a deficient number, since it is larger than the sum of its proper divisors (25809349594).

47747296538 is a wasteful number, since it uses less digits than its factorization.

47747296538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645233776.

The product of its digits is 71124480, while the sum is 62.

The spelling of 47747296538 in words is "forty-seven billion, seven hundred forty-seven million, two hundred ninety-six thousand, five hundred thirty-eight".