21892846164 has 48 divisors (see below), whose sum is σ = 60264185856. Its totient is φ = 6053320800.

The previous prime is 21892846147. The next prime is 21892846193. The reversal of 21892846164 is 46164829812.

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, 4201092 + ... + 4206299.

It is an arithmetic number, because the mean of its divisors is an integer number (1255503872).

Almost surely, 2^21892846164 is an apocalyptic number.

It is an amenable number.

21892846164 is an abundant number, since it is smaller than the sum of its proper divisors (38371339692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21892846164 is a wasteful number, since it uses less digits than its factorization.

21892846164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407436 (or 8407434 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The spelling of 21892846164 in words is "twenty-one billion, eight hundred ninety-two million, eight hundred forty-six thousand, one hundred sixty-four".