7420545451 has 8 divisors (see below), whose sum is σ = 8096040000. Its totient is φ = 6745200840.

The previous prime is 7420545449. The next prime is 7420545467. The reversal of 7420545451 is 1545450247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7420545451 - 2¹ = 7420545449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7420545451.

It is not an unprimeable number, because it can be changed into a prime (7420545401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82800 + ... + 147298.

It is an arithmetic number, because the mean of its divisors is an integer number (1012005000).

Almost surely, 2^7420545451 is an apocalyptic number.

7420545451 is a deficient number, since it is larger than the sum of its proper divisors (675494549).

7420545451 is a wasteful number, since it uses less digits than its factorization.

7420545451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74969.

The product of its (nonzero) digits is 112000, while the sum is 37.

The square root of 7420545451 is about 86142.5879051703. The cubic root of 7420545451 is about 1950.4969542968.

Adding to 7420545451 its reverse (1545450247), we get a palindrome (8965995698).

The spelling of 7420545451 in words is "seven billion, four hundred twenty million, five hundred forty-five thousand, four hundred fifty-one".