2421621051 has 8 divisors (see below), whose sum is σ = 3229662720. Its totient is φ = 1613996712.

The previous prime is 2421620989. The next prime is 2421621107. The reversal of 2421621051 is 1501261242.

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

It is not a de Polignac number, because 2421621051 - 2²³ = 2413232443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421629051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90531 + ... + 114188.

It is an arithmetic number, because the mean of its divisors is an integer number (403707840).

Almost surely, 2^2421621051 is an apocalyptic number.

2421621051 is a deficient number, since it is larger than the sum of its proper divisors (808041669).

2421621051 is a wasteful number, since it uses less digits than its factorization.

2421621051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208665.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2421621051 is about 49209.9690205145. The cubic root of 2421621051 is about 1342.8743991472.

Adding to 2421621051 its reverse (1501261242), we get a palindrome (3922882293).

The spelling of 2421621051 in words is "two billion, four hundred twenty-one million, six hundred twenty-one thousand, fifty-one".