15409042468 has 24 divisors (see below), whose sum is σ = 27903670200. Its totient is φ = 7436717568.

The previous prime is 15409042463. The next prime is 15409042469. The reversal of 15409042468 is 86424090451.

It can be written as a sum of positive squares in 4 ways, for example, as 5832071424 + 9576971044 = 76368^2 + 97862^2 .

It is not an unprimeable number, because it can be changed into a prime (15409042463) 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, 434046 + ... + 468202.

It is an arithmetic number, because the mean of its divisors is an integer number (1162652925).

Almost surely, 2^15409042468 is an apocalyptic number.

It is an amenable number.

15409042468 is a deficient number, since it is larger than the sum of its proper divisors (12494627732).

15409042468 is a wasteful number, since it uses less digits than its factorization.

15409042468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38079 (or 38077 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 15409042468 in words is "fifteen billion, four hundred nine million, forty-two thousand, four hundred sixty-eight".