47461574747621 has 2 divisors, whose sum is σ = 47461574747622. Its totient is φ = 47461574747620.

The previous prime is 47461574747579. The next prime is 47461574747633. The reversal of 47461574747621 is 12674747516474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32257697131396 + 15203877616225 = 5679586^2 + 3899215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47461574747621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47461574741621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23730787373810 + 23730787373811.

It is an arithmetic number, because the mean of its divisors is an integer number (23730787373811).

Almost surely, 2^{47461574747621} is an apocalyptic number.

It is an amenable number.

47461574747621 is a deficient number, since it is larger than the sum of its proper divisors (1).

47461574747621 is an equidigital number, since it uses as much as digits as its factorization.

47461574747621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221276160, while the sum is 65.

The spelling of 47461574747621 in words is "forty-seven trillion, four hundred sixty-one billion, five hundred seventy-four million, seven hundred forty-seven thousand, six hundred twenty-one".