21142627270 has 8 divisors (see below), whose sum is σ = 38056729104. Its totient is φ = 8457050904.

The previous prime is 21142627241. The next prime is 21142627271. The reversal of 21142627270 is 7272624112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142627271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057131354 + ... + 1057131373.

It is an arithmetic number, because the mean of its divisors is an integer number (4757091138).

Almost surely, 2^21142627270 is an apocalyptic number.

21142627270 is a deficient number, since it is larger than the sum of its proper divisors (16914101834).

21142627270 is a wasteful number, since it uses less digits than its factorization.

21142627270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114262734.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 21142627270 in words is "twenty-one billion, one hundred forty-two million, six hundred twenty-seven thousand, two hundred seventy".