47479377140 has 72 divisors (see below), whose sum is σ = 109578379680. Its totient is φ = 17269110144.

The previous prime is 47479377119. The next prime is 47479377161. The reversal of 47479377140 is 4177397474.

It is an interprime number because it is at equal distance from previous prime (47479377119) and next prime (47479377161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121631 + ... + 331289.

It is an arithmetic number, because the mean of its divisors is an integer number (1521921940).

Almost surely, 2^47479377140 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 47479377140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54789189840).

47479377140 is an abundant number, since it is smaller than the sum of its proper divisors (62099002540).

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

47479377140 is a wasteful number, since it uses less digits than its factorization.

47479377140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209761 (or 209746 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 47479377140 in words is "forty-seven billion, four hundred seventy-nine million, three hundred seventy-seven thousand, one hundred forty".