21735341557035 has 96 divisors (see below), whose sum is σ = 38027665190592. Its totient is φ = 10594068725760.

The previous prime is 21735341557019. The next prime is 21735341557051. The reversal of 21735341557035 is 53075514353712.

It is an interprime number because it is at equal distance from previous prime (21735341557019) and next prime (21735341557051).

It is not a de Polignac number, because 21735341557035 - 2⁴ = 21735341557019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21798595 + ... + 22773875.

It is an arithmetic number, because the mean of its divisors is an integer number (396121512402).

Almost surely, 2^{21735341557035} is an apocalyptic number.

21735341557035 is a deficient number, since it is larger than the sum of its proper divisors (16292323633557).

21735341557035 is a wasteful number, since it uses less digits than its factorization.

21735341557035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975473 (or 975456 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 51.

The spelling of 21735341557035 in words is "twenty-one trillion, seven hundred thirty-five billion, three hundred forty-one million, five hundred fifty-seven thousand, thirty-five".