21453608257196 has 12 divisors (see below), whose sum is σ = 37544262749448. Its totient is φ = 10726676043072.

The previous prime is 21453608257183. The next prime is 21453608257229. The reversal of 21453608257196 is 69175280635412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31644026 + ... + 32314881.

It is an arithmetic number, because the mean of its divisors is an integer number (3128688562454).

It is a 1-persistent number, because it is pandigital, but 2⋅21453608257196 = 42907216514392 is not.

Almost surely, 2^{21453608257196} is an apocalyptic number.

It is an amenable number.

21453608257196 is a deficient number, since it is larger than the sum of its proper divisors (16090654492252).

21453608257196 is a wasteful number, since it uses less digits than its factorization.

21453608257196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64042768 (or 64042766 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 21453608257196 in words is "twenty-one trillion, four hundred fifty-three billion, six hundred eight million, two hundred fifty-seven thousand, one hundred ninety-six".