10654732521 has 8 divisors (see below), whose sum is σ = 15784788960. Its totient is φ = 7103154996.

The previous prime is 10654732513. The next prime is 10654732531. The reversal of 10654732521 is 12523745601.

10654732521 is a `hidden beast` number, since 1 + 0 + 65 + 4 + 73 + 2 + 521 = 666.

It is not a de Polignac number, because 10654732521 - 2³ = 10654732513 is a prime.

It is a super-2 number, since 2×10654732521² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10654732531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197309835 + ... + 197309888.

It is an arithmetic number, because the mean of its divisors is an integer number (1973098620).

Almost surely, 2^10654732521 is an apocalyptic number.

It is an amenable number.

10654732521 is a deficient number, since it is larger than the sum of its proper divisors (5130056439).

10654732521 is an equidigital number, since it uses as much as digits as its factorization.

10654732521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394619732 (or 394619726 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 10654732521 in words is "ten billion, six hundred fifty-four million, seven hundred thirty-two thousand, five hundred twenty-one".