21374270011057 has 8 divisors (see below), whose sum is σ = 21385895961312. Its totient is φ = 21362645366400.

The previous prime is 21374270011009. The next prime is 21374270011069. The reversal of 21374270011057 is 75011007247312.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21374270011057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21374276011057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33367882 + ... + 34002412.

It is an arithmetic number, because the mean of its divisors is an integer number (2673236995164).

Almost surely, 2^{21374270011057} is an apocalyptic number.

It is an amenable number.

21374270011057 is a deficient number, since it is larger than the sum of its proper divisors (11625950255).

21374270011057 is a wasteful number, since it uses less digits than its factorization.

21374270011057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652799.

The product of its (nonzero) digits is 82320, while the sum is 40.

Adding to 21374270011057 its reverse (75011007247312), we get a palindrome (96385277258369).

The spelling of 21374270011057 in words is "twenty-one trillion, three hundred seventy-four billion, two hundred seventy million, eleven thousand, fifty-seven".