48081191940 has 72 divisors (see below), whose sum is σ = 146171352600. Its totient is φ = 12793073664.

The previous prime is 48081191923. The next prime is 48081191981. The reversal of 48081191940 is 4919118084.

48081191940 is a `hidden beast` number, since 480 + 8 + 119 + 19 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7545007044 + 40536184896 = 86862^2 + 201336^2 .

It is a super-3 number, since 3×48081191940³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 216639 + ... + 378278.

It is an arithmetic number, because the mean of its divisors is an integer number (2030157675).

Almost surely, 2^48081191940 is an apocalyptic number.

It is an amenable number.

48081191940 is an abundant number, since it is smaller than the sum of its proper divisors (98090160660).

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

48081191940 is a wasteful number, since it uses less digits than its factorization.

48081191940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595381 (or 595376 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 48081191940 in words is "forty-eight billion, eighty-one million, one hundred ninety-one thousand, nine hundred forty".