421651225480 has 16 divisors (see below), whose sum is σ = 948715257420. Its totient is φ = 168660490176.

The previous prime is 421651225439. The next prime is 421651225487. The reversal of 421651225480 is 84522156124.

It can be written as a sum of positive squares in 2 ways, for example, as 353175849796 + 68475375684 = 594286^2 + 261678^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 10541280637 = 421651225480 / (4 + 2 + 1 + 6 + 5 + 1 + 2 + 2 + 5 + 4 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (421651225487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5270640279 + ... + 5270640358.

Almost surely, 2^421651225480 is an apocalyptic number.

421651225480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421651225480 is an abundant number, since it is smaller than the sum of its proper divisors (527064031940).

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

421651225480 is a wasteful number, since it uses less digits than its factorization.

421651225480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10541280648 (or 10541280644 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 421651225480 in words is "four hundred twenty-one billion, six hundred fifty-one million, two hundred twenty-five thousand, four hundred eighty".