47625730477 has 6 divisors (see below), whose sum is σ = 51290095598. Its totient is φ = 43961486424.

The previous prime is 47625730457. The next prime is 47625730511. The reversal of 47625730477 is 77403752674.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32971659561 + 14654070916 = 181581^2 + 121054^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47625730477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47625730417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 756588 + ... + 817114.

Almost surely, 2^47625730477 is an apocalyptic number.

It is an amenable number.

47625730477 is a deficient number, since it is larger than the sum of its proper divisors (3664365121).

47625730477 is an frugal number, since it uses more digits than its factorization.

47625730477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121067 (or 60540 counting only the distinct ones).

The product of its (nonzero) digits is 6914880, while the sum is 52.

Multiplying 47625730477 by its sum of digits (52), we get a square (2476537984804 = 1573702²).

The spelling of 47625730477 in words is "forty-seven billion, six hundred twenty-five million, seven hundred thirty thousand, four hundred seventy-seven".