21430752002 has 8 divisors (see below), whose sum is σ = 35068503312. Its totient is φ = 9741250900.

The previous prime is 21430751999. The next prime is 21430752017. The reversal of 21430752002 is 20025703412.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487062524 + ... + 487062567.

It is an arithmetic number, because the mean of its divisors is an integer number (4383562914).

Almost surely, 2^21430752002 is an apocalyptic number.

21430752002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21430752002 is a deficient number, since it is larger than the sum of its proper divisors (13637751310).

21430752002 is a wasteful number, since it uses less digits than its factorization.

21430752002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974125104.

The product of its (nonzero) digits is 3360, while the sum is 26.

The spelling of 21430752002 in words is "twenty-one billion, four hundred thirty million, seven hundred fifty-two thousand, two".