21077727562 has 32 divisors (see below), whose sum is σ = 32694739200. Its totient is φ = 10187244288.

The previous prime is 21077727557. The next prime is 21077727623. The reversal of 21077727562 is 26572777012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573489 + ... + 1586827.

It is an arithmetic number, because the mean of its divisors is an integer number (1021710600).

Almost surely, 2^21077727562 is an apocalyptic number.

21077727562 is a deficient number, since it is larger than the sum of its proper divisors (11617011638).

21077727562 is a wasteful number, since it uses less digits than its factorization.

21077727562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13630.

The product of its (nonzero) digits is 576240, while the sum is 46.

The spelling of 21077727562 in words is "twenty-one billion, seventy-seven million, seven hundred twenty-seven thousand, five hundred sixty-two".