47402271778 has 16 divisors (see below), whose sum is σ = 72660841344. Its totient is φ = 23182610800.

The previous prime is 47402271773. The next prime is 47402271779. The reversal of 47402271778 is 87717220474.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47402271773) 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, 148 + ... + 307903.

It is an arithmetic number, because the mean of its divisors is an integer number (4541302584).

Almost surely, 2^47402271778 is an apocalyptic number.

47402271778 is a deficient number, since it is larger than the sum of its proper divisors (25258569566).

47402271778 is a wasteful number, since it uses less digits than its factorization.

47402271778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309737.

The product of its (nonzero) digits is 1229312, while the sum is 49.

The spelling of 47402271778 in words is "forty-seven billion, four hundred two million, two hundred seventy-one thousand, seven hundred seventy-eight".