7942420556 has 12 divisors (see below), whose sum is σ = 15884841168. Its totient is φ = 3403894512.

The previous prime is 7942420531. The next prime is 7942420561. The reversal of 7942420556 is 6550242497.

7942420556 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141828911 + ... + 141828966.

It is an arithmetic number, because the mean of its divisors is an integer number (1323736764).

Almost surely, 2^7942420556 is an apocalyptic number.

It is an amenable number.

7942420556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7942420556 is a wasteful number, since it uses less digits than its factorization.

7942420556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283657888 (or 283657886 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 7942420556 is about 89120.2589538428. The cubic root of 7942420556 is about 1995.1901549682.

The spelling of 7942420556 in words is "seven billion, nine hundred forty-two million, four hundred twenty thousand, five hundred fifty-six".