21364767054141 has 16 divisors (see below), whose sum is σ = 32556116987904. Its totient is φ = 12208332762864.

The previous prime is 21364767054107. The next prime is 21364767054143. The reversal of 21364767054141 is 14145076746312.

It is not a de Polignac number, because 21364767054141 - 2⁷ = 21364767054013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364767054143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1877781 + ... + 6801146.

It is an arithmetic number, because the mean of its divisors is an integer number (2034757311744).

Almost surely, 2^{21364767054141} is an apocalyptic number.

21364767054141 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21364767054141 is a deficient number, since it is larger than the sum of its proper divisors (11191349933763).

21364767054141 is a wasteful number, since it uses less digits than its factorization.

21364767054141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8796160.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 21364767054141 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred sixty-seven million, fifty-four thousand, one hundred forty-one".