46720781380 has 192 divisors, whose sum is σ = 125950390272. Its totient is φ = 14160199680.

The previous prime is 46720781353. The next prime is 46720781417. The reversal of 46720781380 is 8318702764.

It is a self number, because there is not a number n which added to its sum of digits gives 46720781380.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5468472 + ... + 5477008.

It is an arithmetic number, because the mean of its divisors is an integer number (655991616).

Almost surely, 2^46720781380 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 46720781380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62975195136).

46720781380 is an abundant number, since it is smaller than the sum of its proper divisors (79229608892).

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

46720781380 is a wasteful number, since it uses less digits than its factorization.

46720781380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694 (or 8692 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

It can be divided in two parts, 46720 and 781380, that added together give a square (828100 = 910²).

The spelling of 46720781380 in words is "forty-six billion, seven hundred twenty million, seven hundred eighty-one thousand, three hundred eighty".