7804881042 has 64 divisors (see below), whose sum is σ = 18877722624. Its totient is φ = 2102950080.

The previous prime is 7804881001. The next prime is 7804881043. The reversal of 7804881042 is 2401884087.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7804880985 and 7804881003.

It is not an unprimeable number, because it can be changed into a prime (7804881043) 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 31 ways as a sum of consecutive naturals, for example, 11688 + ... + 125484.

It is an arithmetic number, because the mean of its divisors is an integer number (294964416).

Almost surely, 2^7804881042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7804881042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9438861312).

7804881042 is an abundant number, since it is smaller than the sum of its proper divisors (11072841582).

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

7804881042 is a wasteful number, since it uses less digits than its factorization.

7804881042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113903.

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 7804881042 is about 88345.2378003478. The cubic root of 7804881042 is about 1983.6060735922.

The spelling of 7804881042 in words is "seven billion, eight hundred four million, eight hundred eighty-one thousand, forty-two".