47547263421 has 36 divisors (see below), whose sum is σ = 81104458656. Its totient is φ = 26293384080.

The previous prime is 47547263411. The next prime is 47547263443. The reversal of 47547263421 is 12436274574.

47547263421 is a `hidden beast` number, since 4 + 7 + 5 + 4 + 7 + 2 + 634 + 2 + 1 = 666.

It is not a de Polignac number, because 47547263421 - 2⁷ = 47547263293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47547263411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 332131 + ... + 453216.

Almost surely, 2^47547263421 is an apocalyptic number.

It is an amenable number.

47547263421 is a deficient number, since it is larger than the sum of its proper divisors (33557195235).

47547263421 is a wasteful number, since it uses less digits than its factorization.

47547263421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785422 (or 785388 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 47547263421 in words is "forty-seven billion, five hundred forty-seven million, two hundred sixty-three thousand, four hundred twenty-one".