47390677636 has 27 divisors (see below), whose sum is σ = 83944633381. Its totient is φ = 23409941984.

The previous prime is 47390677561. The next prime is 47390677651. The reversal of 47390677636 is 63677609374.

The square root of 47390677636 is 217694.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9100015236 + 38290662400 = 95394^2 + 195680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38748921 + ... + 38750143.

Almost surely, 2^47390677636 is an apocalyptic number.

47390677636 is the 217694-th square number.

It is an amenable number.

47390677636 is a deficient number, since it is larger than the sum of its proper divisors (36553955745).

47390677636 is an frugal number, since it uses more digits than its factorization.

47390677636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 58.

The spelling of 47390677636 in words is "forty-seven billion, three hundred ninety million, six hundred seventy-seven thousand, six hundred thirty-six".