21450611105462 has 32 divisors (see below), whose sum is σ = 40115703962880. Its totient is φ = 8357323574880.

The previous prime is 21450611105461. The next prime is 21450611105467. The reversal of 21450611105462 is 26450111605412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21450611105461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27218933 + ... + 27995919.

It is an arithmetic number, because the mean of its divisors is an integer number (1253615748840).

Almost surely, 2^{21450611105462} is an apocalyptic number.

21450611105462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21450611105462 is a deficient number, since it is larger than the sum of its proper divisors (18665092857418).

21450611105462 is a wasteful number, since it uses less digits than its factorization.

21450611105462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956276.

The product of its (nonzero) digits is 57600, while the sum is 38.

It can be divided in two parts, 2145061 and 1105462, that added together give a palindrome (3250523).

The spelling of 21450611105462 in words is "twenty-one trillion, four hundred fifty billion, six hundred eleven million, one hundred five thousand, four hundred sixty-two".