7418730021 has 8 divisors (see below), whose sum is σ = 9892038144. Its totient is φ = 4945620960.

The previous prime is 7418729959. The next prime is 7418730023. The reversal of 7418730021 is 1200378147.

It is a happy number.

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

It is not a de Polignac number, because 7418730021 - 2⁷ = 7418729893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7418730023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117820 + ... + 169466.

It is an arithmetic number, because the mean of its divisors is an integer number (1236504768).

Almost surely, 2^7418730021 is an apocalyptic number.

It is an amenable number.

7418730021 is a deficient number, since it is larger than the sum of its proper divisors (2473308123).

7418730021 is a wasteful number, since it uses less digits than its factorization.

7418730021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99531.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 7418730021 is about 86132.0499059438. The cubic root of 7418730021 is about 1950.3378788615.

The spelling of 7418730021 in words is "seven billion, four hundred eighteen million, seven hundred thirty thousand, twenty-one".