21769813701 has 12 divisors (see below), whose sum is σ = 31583814912. Its totient is φ = 14449272936.

The previous prime is 21769813679. The next prime is 21769813717. The reversal of 21769813701 is 10731896712.

21769813701 is a `hidden beast` number, since 217 + 69 + 8 + 1 + 370 + 1 = 666.

It is not a de Polignac number, because 21769813701 - 2⁹ = 21769813189 is a prime.

It is a super-3 number, since 3×21769813701³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21769813201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5325861 + ... + 5329946.

It is an arithmetic number, because the mean of its divisors is an integer number (2631984576).

Almost surely, 2^21769813701 is an apocalyptic number.

It is an amenable number.

21769813701 is a deficient number, since it is larger than the sum of its proper divisors (9814001211).

21769813701 is a wasteful number, since it uses less digits than its factorization.

21769813701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656040 (or 10656037 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 21769813701 in words is "twenty-one billion, seven hundred sixty-nine million, eight hundred thirteen thousand, seven hundred one".