10012015409 has 24 divisors (see below), whose sum is σ = 11449933824. Its totient is φ = 8738452800.

The previous prime is 10012015397. The next prime is 10012015417. The reversal of 10012015409 is 90451021001.

It is a happy number.

It is not a de Polignac number, because 10012015409 - 2¹⁶ = 10011949873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10012015499) 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, 465869 + ... + 486885.

It is an arithmetic number, because the mean of its divisors is an integer number (477080576).

Almost surely, 2^10012015409 is an apocalyptic number.

It is an amenable number.

10012015409 is a deficient number, since it is larger than the sum of its proper divisors (1437918415).

10012015409 is a wasteful number, since it uses less digits than its factorization.

10012015409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21197 (or 21186 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 10012015409 in words is "ten billion, twelve million, fifteen thousand, four hundred nine".