21710476532 has 24 divisors (see below), whose sum is σ = 39245777256. Its totient is φ = 10500789888.

The previous prime is 21710476499. The next prime is 21710476537. The reversal of 21710476532 is 23567401712.

It can be written as a sum of positive squares in 4 ways, for example, as 8095320676 + 13615155856 = 89974^2 + 116684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21710476537) 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, 398363 + ... + 449570.

It is an arithmetic number, because the mean of its divisors is an integer number (1635240719).

Almost surely, 2^21710476532 is an apocalyptic number.

It is an amenable number.

21710476532 is a deficient number, since it is larger than the sum of its proper divisors (17535300724).

21710476532 is a wasteful number, since it uses less digits than its factorization.

21710476532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848147 (or 848145 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 21710476532 in words is "twenty-one billion, seven hundred ten million, four hundred seventy-six thousand, five hundred thirty-two".