20701689735 has 64 divisors (see below), whose sum is σ = 36130406400. Its totient is φ = 10080860160.

The previous prime is 20701689721. The next prime is 20701689797. The reversal of 20701689735 is 53798610702.

It is not a de Polignac number, because 20701689735 - 2⁴ = 20701689719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1627450 + ... + 1640120.

It is an arithmetic number, because the mean of its divisors is an integer number (564537600).

Almost surely, 2^20701689735 is an apocalyptic number.

20701689735 is a deficient number, since it is larger than the sum of its proper divisors (15428716665).

20701689735 is a wasteful number, since it uses less digits than its factorization.

20701689735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12888.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 20701689735 in words is "twenty billion, seven hundred one million, six hundred eighty-nine thousand, seven hundred thirty-five".