40268781480 has 128 divisors (see below), whose sum is σ = 122958000000. Its totient is φ = 10547395584.

The previous prime is 40268781347. The next prime is 40268781521. The reversal of 40268781480 is 8418786204.

It is a super-3 number, since 3×40268781480³ (a number of 33 digits) contains 333 as substring.

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, 14647146 + ... + 14649894.

It is an arithmetic number, because the mean of its divisors is an integer number (960609375).

Almost surely, 2^40268781480 is an apocalyptic number.

40268781480 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 40268781480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61479000000).

40268781480 is an abundant number, since it is smaller than the sum of its proper divisors (82689218520).

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

40268781480 is a wasteful number, since it uses less digits than its factorization.

40268781480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 40268781480 in words is "forty billion, two hundred sixty-eight million, seven hundred eighty-one thousand, four hundred eighty".