46878481920 has 240 divisors, whose sum is σ = 159206314608. Its totient is φ = 11765022720.

The previous prime is 46878481907. The next prime is 46878481961. The reversal of 46878481920 is 2918487864.

It is a tau number, because it is divible by the number of its divisors (240).

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, 2208960 + ... + 2230080.

Almost surely, 2^46878481920 is an apocalyptic number.

46878481920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46878481920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79603157304).

46878481920 is an abundant number, since it is smaller than the sum of its proper divisors (112327832688).

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

46878481920 is a wasteful number, since it uses less digits than its factorization.

46878481920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21181 (or 21148 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 46878481920 in words is "forty-six billion, eight hundred seventy-eight million, four hundred eighty-one thousand, nine hundred twenty".