20627246377 has 16 divisors (see below), whose sum is σ = 21627412992. Its totient is φ = 19635929280.

The previous prime is 20627246351. The next prime is 20627246399. The reversal of 20627246377 is 77364272602.

It is a cyclic number.

It is not a de Polignac number, because 20627246377 - 2²³ = 20618857769 is a prime.

It is a super-2 number, since 2×20627246377² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20627246077) by changing a digit.

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, 4564323 + ... + 4568839.

It is an arithmetic number, because the mean of its divisors is an integer number (1351713312).

Almost surely, 2^20627246377 is an apocalyptic number.

It is an amenable number.

20627246377 is a deficient number, since it is larger than the sum of its proper divisors (1000166615).

20627246377 is a wasteful number, since it uses less digits than its factorization.

20627246377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448.

The product of its (nonzero) digits is 1185408, while the sum is 46.

The spelling of 20627246377 in words is "twenty billion, six hundred twenty-seven million, two hundred forty-six thousand, three hundred seventy-seven".