47262621521 has 2 divisors, whose sum is σ = 47262621522. Its totient is φ = 47262621520.

The previous prime is 47262621517. The next prime is 47262621533. The reversal of 47262621521 is 12512626274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43971993025 + 3290628496 = 209695^2 + 57364^2 .

It is a cyclic number.

It is not a de Polignac number, because 47262621521 - 2² = 47262621517 is a prime.

It is not a weakly prime, because it can be changed into another prime (47262621551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23631310760 + 23631310761.

It is an arithmetic number, because the mean of its divisors is an integer number (23631310761).

Almost surely, 2^47262621521 is an apocalyptic number.

It is an amenable number.

47262621521 is a deficient number, since it is larger than the sum of its proper divisors (1).

47262621521 is an equidigital number, since it uses as much as digits as its factorization.

47262621521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The spelling of 47262621521 in words is "forty-seven billion, two hundred sixty-two million, six hundred twenty-one thousand, five hundred twenty-one".