21529270232 has 32 divisors (see below), whose sum is σ = 41875444800. Its totient is φ = 10369132800.

The previous prime is 21529270211. The next prime is 21529270249. The reversal of 21529270232 is 23207292512.

It is a junction number, because it is equal to n+sod(n) for n = 21529270192 and 21529270201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389519 + ... + 441342.

It is an arithmetic number, because the mean of its divisors is an integer number (1308607650).

Almost surely, 2^21529270232 is an apocalyptic number.

It is an amenable number.

21529270232 is a deficient number, since it is larger than the sum of its proper divisors (20346174568).

21529270232 is a wasteful number, since it uses less digits than its factorization.

21529270232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830987 (or 830983 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 21529270232 in words is "twenty-one billion, five hundred twenty-nine million, two hundred seventy thousand, two hundred thirty-two".