7428556801 has 2 divisors, whose sum is σ = 7428556802. Its totient is φ = 7428556800.

The previous prime is 7428556781. The next prime is 7428556843. The reversal of 7428556801 is 1086558247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6879873025 + 548683776 = 82945^2 + 23424^2 .

It is a cyclic number.

It is not a de Polignac number, because 7428556801 - 2¹⁷ = 7428425729 is a prime.

It is a super-2 number, since 2×7428556801² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7428556501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3714278400 + 3714278401.

It is an arithmetic number, because the mean of its divisors is an integer number (3714278401).

Almost surely, 2^7428556801 is an apocalyptic number.

It is an amenable number.

7428556801 is a deficient number, since it is larger than the sum of its proper divisors (1).

7428556801 is an equidigital number, since it uses as much as digits as its factorization.

7428556801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 7428556801 is about 86189.0758797192. The cubic root of 7428556801 is about 1951.1986319942.

The spelling of 7428556801 in words is "seven billion, four hundred twenty-eight million, five hundred fifty-six thousand, eight hundred one".