7442196785520 has 160 divisors (see below), whose sum is σ = 26369404250112. Its totient is φ = 1700895215616.

The previous prime is 7442196785501. The next prime is 7442196785539. The reversal of 7442196785520 is 255876912447.

It is a Cunningham number, because it is equal to 2728039²-1.

It is an interprime number because it is at equal distance from previous prime (7442196785501) and next prime (7442196785539).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16140904 + ... + 16595576.

Almost surely, 2^{7442196785520} is an apocalyptic number.

7442196785520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7442196785520 is an abundant number, since it is smaller than the sum of its proper divisors (18927207464592).

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

7442196785520 is a wasteful number, since it uses less digits than its factorization.

7442196785520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464439 (or 464433 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 60.

The spelling of 7442196785520 in words is "seven trillion, four hundred forty-two billion, one hundred ninety-six million, seven hundred eighty-five thousand, five hundred twenty".