47780640860 has 48 divisors (see below), whose sum is σ = 102541009536. Its totient is φ = 18693422592.

The previous prime is 47780640857. The next prime is 47780640863. The reversal of 47780640860 is 6804608774.

It is an interprime number because it is at equal distance from previous prime (47780640857) and next prime (47780640863).

It is a junction number, because it is equal to n+sod(n) for n = 47780640799 and 47780640808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47780640863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500464 + ... + 1531976.

It is an arithmetic number, because the mean of its divisors is an integer number (2136271032).

Almost surely, 2^47780640860 is an apocalyptic number.

It is an amenable number.

47780640860 is an abundant number, since it is smaller than the sum of its proper divisors (54760368676).

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

47780640860 is a wasteful number, since it uses less digits than its factorization.

47780640860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33182 (or 33180 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 47780640860 in words is "forty-seven billion, seven hundred eighty million, six hundred forty thousand, eight hundred sixty".