20634491577286 has 32 divisors (see below), whose sum is σ = 31891768840800. Its totient is φ = 10008568500480.

The previous prime is 20634491577269. The next prime is 20634491577311. The reversal of 20634491577286 is 68277519443602.

It is a super-2 number, since 2×20634491577286² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 209589120 + ... + 209687548.

It is an arithmetic number, because the mean of its divisors is an integer number (996617776275).

It is a 1-persistent number, because it is pandigital, but 2⋅20634491577286 = 41268983154572 is not.

Almost surely, 2^{20634491577286} is an apocalyptic number.

20634491577286 is a deficient number, since it is larger than the sum of its proper divisors (11257277263514).

20634491577286 is a wasteful number, since it uses less digits than its factorization.

20634491577286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122104.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 20634491577286 in words is "twenty trillion, six hundred thirty-four billion, four hundred ninety-one million, five hundred seventy-seven thousand, two hundred eighty-six".