21254127095 has 8 divisors (see below), whose sum is σ = 25699647600. Its totient is φ = 16873504960.

The previous prime is 21254127091. The next prime is 21254127121. The reversal of 21254127095 is 59072145212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21254127095 - 2² = 21254127091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21254127091) 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, 16223870 + ... + 16225179.

It is an arithmetic number, because the mean of its divisors is an integer number (3212455950).

Almost surely, 2^21254127095 is an apocalyptic number.

21254127095 is a deficient number, since it is larger than the sum of its proper divisors (4445520505).

21254127095 is a wasteful number, since it uses less digits than its factorization.

21254127095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32449185.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 21254127095 in words is "twenty-one billion, two hundred fifty-four million, one hundred twenty-seven thousand, ninety-five".