21435454510 has 32 divisors (see below), whose sum is σ = 39141522432. Its totient is φ = 8450336160.

The previous prime is 21435454507. The next prime is 21435454531. The reversal of 21435454510 is 1545453412.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3665649 + ... + 3671491.

It is an arithmetic number, because the mean of its divisors is an integer number (1223172576).

Almost surely, 2^21435454510 is an apocalyptic number.

21435454510 is a deficient number, since it is larger than the sum of its proper divisors (17706067922).

21435454510 is a wasteful number, since it uses less digits than its factorization.

21435454510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11088.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 21435454510 in words is "twenty-one billion, four hundred thirty-five million, four hundred fifty-four thousand, five hundred ten".