42547674541 has 2 divisors, whose sum is σ = 42547674542. Its totient is φ = 42547674540.

The previous prime is 42547674523. The next prime is 42547674553. The reversal of 42547674541 is 14547674524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36119002500 + 6428672041 = 190050^2 + 80179^2 .

It is a cyclic number.

It is not a de Polignac number, because 42547674541 - 2¹⁷ = 42547543469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42547674041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21273837270 + 21273837271.

It is an arithmetic number, because the mean of its divisors is an integer number (21273837271).

Almost surely, 2^42547674541 is an apocalyptic number.

It is an amenable number.

42547674541 is a deficient number, since it is larger than the sum of its proper divisors (1).

42547674541 is an equidigital number, since it uses as much as digits as its factorization.

42547674541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3763200, while the sum is 49.

The spelling of 42547674541 in words is "forty-two billion, five hundred forty-seven million, six hundred seventy-four thousand, five hundred forty-one".