47019973780 has 24 divisors (see below), whose sum is σ = 106337479752. Its totient is φ = 17361220992.

The previous prime is 47019973771. The next prime is 47019973807. The reversal of 47019973780 is 8737991074.

It can be written as a sum of positive squares in 4 ways, for example, as 9202948624 + 37817025156 = 95932^2 + 194466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90422767 + ... + 90423286.

It is an arithmetic number, because the mean of its divisors is an integer number (4430728323).

Almost surely, 2^47019973780 is an apocalyptic number.

It is an amenable number.

47019973780 is an abundant number, since it is smaller than the sum of its proper divisors (59317505972).

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

47019973780 is a wasteful number, since it uses less digits than its factorization.

47019973780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180846075 (or 180846073 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 55.

It can be divided in two parts, 47019973 and 780, that added together give a triangular number (47020753 = T₉₆₉₇).

The spelling of 47019973780 in words is "forty-seven billion, nineteen million, nine hundred seventy-three thousand, seven hundred eighty".