47977664380 has 96 divisors (see below), whose sum is σ = 105575581440. Its totient is φ = 18290764800.

The previous prime is 47977664369. The next prime is 47977664393. The reversal of 47977664380 is 8346677974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23255229 + ... + 23257291.

It is an arithmetic number, because the mean of its divisors is an integer number (1099745640).

Almost surely, 2^47977664380 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 47977664380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52787790720).

47977664380 is an abundant number, since it is smaller than the sum of its proper divisors (57597917060).

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

47977664380 is a wasteful number, since it uses less digits than its factorization.

47977664380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2597 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 47977664380 in words is "forty-seven billion, nine hundred seventy-seven million, six hundred sixty-four thousand, three hundred eighty".