20846185351 has 8 divisors (see below), whose sum is σ = 20944211904. Its totient is φ = 20748388320.

The previous prime is 20846185337. The next prime is 20846185361. The reversal of 20846185351 is 15358164802.

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 20846185351 - 2⁷ = 20846185223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20846185298 and 20846185307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20846185361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126066 + ... + 239968.

It is an arithmetic number, because the mean of its divisors is an integer number (2618026488).

Almost surely, 2^20846185351 is an apocalyptic number.

20846185351 is a deficient number, since it is larger than the sum of its proper divisors (98026553).

20846185351 is a wasteful number, since it uses less digits than its factorization.

20846185351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114761.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 20846185351 in words is "twenty billion, eight hundred forty-six million, one hundred eighty-five thousand, three hundred fifty-one".