7420545064 has 32 divisors (see below), whose sum is σ = 14638113000. Its totient is φ = 3521940480.

The previous prime is 7420545059. The next prime is 7420545071. The reversal of 7420545064 is 4605450247.

It can be written as a sum of positive squares in 4 ways, for example, as 6220476900 + 1200068164 = 78870^2 + 34642^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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, 293589 + ... + 317860.

Almost surely, 2^7420545064 is an apocalyptic number.

7420545064 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

7420545064 is a deficient number, since it is larger than the sum of its proper divisors (7217567936).

7420545064 is a wasteful number, since it uses less digits than its factorization.

7420545064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611533 (or 611529 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The square root of 7420545064 is about 86142.5856588946. The cubic root of 7420545064 is about 1950.4969203890.

The spelling of 7420545064 in words is "seven billion, four hundred twenty million, five hundred forty-five thousand, sixty-four".