21340713456375 has 32 divisors (see below), whose sum is σ = 36180965096640. Its totient is φ = 11166964515200.

The previous prime is 21340713456323. The next prime is 21340713456383. The reversal of 21340713456375 is 57365431704312.

It is not a de Polignac number, because 21340713456375 - 2¹⁶ = 21340713390839 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 536853420 + ... + 536893169.

It is an arithmetic number, because the mean of its divisors is an integer number (1130655159270).

Almost surely, 2^{21340713456375} is an apocalyptic number.

21340713456375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21340713456375 is a deficient number, since it is larger than the sum of its proper divisors (14840251640265).

21340713456375 is a wasteful number, since it uses less digits than its factorization.

21340713456375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073746660 (or 1073746650 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 51.

The spelling of 21340713456375 in words is "twenty-one trillion, three hundred forty billion, seven hundred thirteen million, four hundred fifty-six thousand, three hundred seventy-five".