47471395778 has 16 divisors (see below), whose sum is σ = 73737535680. Its totient is φ = 22893884496.

The previous prime is 47471395771. The next prime is 47471395781. The reversal of 47471395778 is 87759317474.

It is a super-2 number, since 2×47471395778² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47471395778.

It is not an unprimeable number, because it can be changed into a prime (47471395771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359300 + ... + 473327.

It is an arithmetic number, because the mean of its divisors is an integer number (4608595980).

Almost surely, 2^47471395778 is an apocalyptic number.

47471395778 is a deficient number, since it is larger than the sum of its proper divisors (26266139902).

47471395778 is a wasteful number, since it uses less digits than its factorization.

47471395778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833641.

The product of its digits is 41489280, while the sum is 62.

The spelling of 47471395778 in words is "forty-seven billion, four hundred seventy-one million, three hundred ninety-five thousand, seven hundred seventy-eight".