21357132514 has 8 divisors (see below), whose sum is σ = 33721788240. Its totient is φ = 10116536436.

The previous prime is 21357132481. The next prime is 21357132541. The reversal of 21357132514 is 41523175312.

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

It is a super-2 number, since 2×21357132514² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21357132514.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281014864 + ... + 281014939.

It is an arithmetic number, because the mean of its divisors is an integer number (4215223530).

Almost surely, 2^21357132514 is an apocalyptic number.

21357132514 is a deficient number, since it is larger than the sum of its proper divisors (12364655726).

21357132514 is a wasteful number, since it uses less digits than its factorization.

21357132514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562029824.

The product of its digits is 25200, while the sum is 34.

The spelling of 21357132514 in words is "twenty-one billion, three hundred fifty-seven million, one hundred thirty-two thousand, five hundred fourteen".