10021537628 has 12 divisors (see below), whose sum is σ = 17544025632. Its totient is φ = 5008958880.

The previous prime is 10021537573. The next prime is 10021537639. The reversal of 10021537628 is 82673512001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439988 + ... + 462203.

It is an arithmetic number, because the mean of its divisors is an integer number (1462002136).

Almost surely, 2^10021537628 is an apocalyptic number.

It is an amenable number.

10021537628 is a deficient number, since it is larger than the sum of its proper divisors (7522488004).

10021537628 is a wasteful number, since it uses less digits than its factorization.

10021537628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904972 (or 904970 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 10021537628 in words is "ten billion, twenty-one million, five hundred thirty-seven thousand, six hundred twenty-eight".