47485385781 has 8 divisors (see below), whose sum is σ = 64858088064. Its totient is φ = 30884803680.

The previous prime is 47485385719. The next prime is 47485385797. The reversal of 47485385781 is 18758358474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47485385781 - 2⁷ = 47485385653 is a prime.

It is a super-2 number, since 2×47485385781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47485385081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193029901 + ... + 193030146.

It is an arithmetic number, because the mean of its divisors is an integer number (8107261008).

Almost surely, 2^47485385781 is an apocalyptic number.

47485385781 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

47485385781 is a deficient number, since it is larger than the sum of its proper divisors (17372702283).

47485385781 is a wasteful number, since it uses less digits than its factorization.

47485385781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386060091.

The product of its digits is 30105600, while the sum is 60.

The spelling of 47485385781 in words is "forty-seven billion, four hundred eighty-five million, three hundred eighty-five thousand, seven hundred eighty-one".