47780477380 has 48 divisors (see below), whose sum is σ = 104998529664. Its totient is φ = 18229376000.

The previous prime is 47780477359. The next prime is 47780477429. The reversal of 47780477380 is 8377408774.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15255 + ... + 309505.

It is an arithmetic number, because the mean of its divisors is an integer number (2187469368).

Almost surely, 2^47780477380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47780477380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52499264832).

47780477380 is an abundant number, since it is smaller than the sum of its proper divisors (57218052284).

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

47780477380 is a wasteful number, since it uses less digits than its factorization.

47780477380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294636 (or 294634 counting only the distinct ones).

The product of its (nonzero) digits is 7375872, while the sum is 55.

The spelling of 47780477380 in words is "forty-seven billion, seven hundred eighty million, four hundred seventy-seven thousand, three hundred eighty".