10715770021 has 24 divisors (see below), whose sum is σ = 12621826080. Its totient is φ = 9018105600.

The previous prime is 10715770007. The next prime is 10715770057. The reversal of 10715770021 is 12007751701.

It is not a de Polignac number, because 10715770021 - 2¹¹ = 10715767973 is a prime.

It is a super-2 number, since 2×10715770021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10715770421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166290 + ... + 221548.

It is an arithmetic number, because the mean of its divisors is an integer number (525909420).

Almost surely, 2^10715770021 is an apocalyptic number.

10715770021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10715770021 is a deficient number, since it is larger than the sum of its proper divisors (1906056059).

10715770021 is a wasteful number, since it uses less digits than its factorization.

10715770021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55365 (or 55348 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 31.

The spelling of 10715770021 in words is "ten billion, seven hundred fifteen million, seven hundred seventy thousand, twenty-one".