47501547737481 has 6 divisors (see below), whose sum is σ = 68613346731930. Its totient is φ = 31667698491648.

The previous prime is 47501547737437. The next prime is 47501547737533. The reversal of 47501547737481 is 18473774510574.

47501547737481 is a `hidden beast` number, since 4 + 7 + 5 + 0 + 1 + 54 + 77 + 37 + 481 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29855121152256 + 17646426585225 = 5463984^2 + 4200765^2 .

It is not a de Polignac number, because 47501547737481 - 2¹³ = 47501547729289 is a prime.

It is a super-2 number, since 2×47501547737481² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47501547737401) 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, 2638974874296 + ... + 2638974874313.

It is an arithmetic number, because the mean of its divisors is an integer number (11435557788655).

Almost surely, 2^{47501547737481} is an apocalyptic number.

It is an amenable number.

47501547737481 is a deficient number, since it is larger than the sum of its proper divisors (21111798994449).

47501547737481 is a wasteful number, since it uses less digits than its factorization.

47501547737481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277949748615 (or 5277949748612 counting only the distinct ones).

The product of its (nonzero) digits is 92198400, while the sum is 63.

The spelling of 47501547737481 in words is "forty-seven trillion, five hundred one billion, five hundred forty-seven million, seven hundred thirty-seven thousand, four hundred eighty-one".