47521042646 has 32 divisors (see below), whose sum is σ = 90327432960. Its totient is φ = 18211168800.

The previous prime is 47521042637. The next prime is 47521042649. The reversal of 47521042646 is 64624012574.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47521042649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2519936 + ... + 2538723.

It is an arithmetic number, because the mean of its divisors is an integer number (2822732280).

Almost surely, 2^47521042646 is an apocalyptic number.

47521042646 is a deficient number, since it is larger than the sum of its proper divisors (42806390314).

47521042646 is a wasteful number, since it uses less digits than its factorization.

47521042646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058740.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 47521042646 in words is "forty-seven billion, five hundred twenty-one million, forty-two thousand, six hundred forty-six".