7421267866530 has 512 divisors, whose sum is σ = 22050321334272. Its totient is φ = 1562751590400.

The previous prime is 7421267866513. The next prime is 7421267866541. The reversal of 7421267866530 is 356687621247.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2786805979 + ... + 2786808641.

It is an arithmetic number, because the mean of its divisors is an integer number (43067033856).

Almost surely, 2^{7421267866530} is an apocalyptic number.

7421267866530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421267866530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11025160667136).

7421267866530 is an abundant number, since it is smaller than the sum of its proper divisors (14629053467742).

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

7421267866530 is a wasteful number, since it uses less digits than its factorization.

7421267866530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002.

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 7421267866530 in words is "seven trillion, four hundred twenty-one billion, two hundred sixty-seven million, eight hundred sixty-six thousand, five hundred thirty".