7454427820 has 36 divisors (see below), whose sum is σ = 18210104640. Its totient is φ = 2555803488.

The previous prime is 7454427791. The next prime is 7454427821. The reversal of 7454427820 is 287244547.

It is not an unprimeable number, because it can be changed into a prime (7454427821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3802300 + ... + 3804259.

It is an arithmetic number, because the mean of its divisors is an integer number (505836240).

Almost surely, 2^7454427820 is an apocalyptic number.

7454427820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7454427820 is an abundant number, since it is smaller than the sum of its proper divisors (10755676820).

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

7454427820 is a wasteful number, since it uses less digits than its factorization.

7454427820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606582 (or 7606573 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 43.

The square root of 7454427820 is about 86339.0283707200. The cubic root of 7454427820 is about 1953.4611176355.

The spelling of 7454427820 in words is "seven billion, four hundred fifty-four million, four hundred twenty-seven thousand, eight hundred twenty".