78282948940 has 24 divisors (see below), whose sum is σ = 187879077792. Its totient is φ = 26839868160.

The previous prime is 78282948923. The next prime is 78282948943. The reversal of 78282948940 is 4984928287.

It is a super-2 number, since 2×78282948940² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78282948943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279581821 + ... + 279582100.

It is an arithmetic number, because the mean of its divisors is an integer number (7828294908).

Almost surely, 2^78282948940 is an apocalyptic number.

78282948940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78282948940 is an abundant number, since it is smaller than the sum of its proper divisors (109596128852).

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

78282948940 is a wasteful number, since it uses less digits than its factorization.

78282948940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559163937 (or 559163935 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 78282948940 in words is "seventy-eight billion, two hundred eighty-two million, nine hundred forty-eight thousand, nine hundred forty".