21357454504058 has 32 divisors (see below), whose sum is σ = 32487942801600. Its totient is φ = 10528831184256.

The previous prime is 21357454504037. The next prime is 21357454504073. The reversal of 21357454504058 is 85040545475312.

It is a super-2 number, since 2×21357454504058² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381334685 + ... + 381390687.

It is an arithmetic number, because the mean of its divisors is an integer number (1015248212550).

Almost surely, 2^{21357454504058} is an apocalyptic number.

21357454504058 is a deficient number, since it is larger than the sum of its proper divisors (11130488297542).

21357454504058 is a wasteful number, since it uses less digits than its factorization.

21357454504058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62126.

The product of its (nonzero) digits is 13440000, while the sum is 53.

The spelling of 21357454504058 in words is "twenty-one trillion, three hundred fifty-seven billion, four hundred fifty-four million, five hundred four thousand, fifty-eight".