21077550307 has 8 divisors (see below), whose sum is σ = 24203885760. Its totient is φ = 18152913960.

The previous prime is 21077550259. The next prime is 21077550311. The reversal of 21077550307 is 70305577012.

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

It is a cyclic number.

It is not a de Polignac number, because 21077550307 - 2²³ = 21069161699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21077500307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50424553 + ... + 50424970.

It is an arithmetic number, because the mean of its divisors is an integer number (3025485720).

Almost surely, 2^21077550307 is an apocalyptic number.

21077550307 is a deficient number, since it is larger than the sum of its proper divisors (3126335453).

21077550307 is a wasteful number, since it uses less digits than its factorization.

21077550307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100849553.

The product of its (nonzero) digits is 51450, while the sum is 37.

The spelling of 21077550307 in words is "twenty-one billion, seventy-seven million, five hundred fifty thousand, three hundred seven".