46781553780 has 384 divisors, whose sum is σ = 162678620160. Its totient is φ = 11083184640.

The previous prime is 46781553739. The next prime is 46781553809. The reversal of 46781553780 is 8735518764.

It is a happy number.

46781553780 is a `hidden beast` number, since 4 + 6 + 7 + 8 + 1 + 553 + 7 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent 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 127 ways as a sum of consecutive naturals, for example, 49399267 + ... + 49400213.

It is an arithmetic number, because the mean of its divisors is an integer number (423642240).

Almost surely, 2^46781553780 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 46781553780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81339310080).

46781553780 is an abundant number, since it is smaller than the sum of its proper divisors (115897066380).

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

46781553780 is a wasteful number, since it uses less digits than its factorization.

46781553780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 46781553780 in words is "forty-six billion, seven hundred eighty-one million, five hundred fifty-three thousand, seven hundred eighty".