47457806544 has 30 divisors (see below), whose sum is σ = 132815945106. Its totient is φ = 15819268800.

The previous prime is 47457806537. The next prime is 47457806549. The reversal of 47457806544 is 44560875474.

47457806544 is a `hidden beast` number, since 4 + 7 + 4 + 578 + 0 + 65 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45491770944 + 1966035600 = 213288^2 + 44340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47457806549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164783907 + ... + 164784194.

Almost surely, 2^47457806544 is an apocalyptic number.

It is an amenable number.

47457806544 is an abundant number, since it is smaller than the sum of its proper divisors (85358138562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47457806544 is a wasteful number, since it uses less digits than its factorization.

47457806544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329568115 (or 329568106 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 54.

The spelling of 47457806544 in words is "forty-seven billion, four hundred fifty-seven million, eight hundred six thousand, five hundred forty-four".