15415405045 has 8 divisors (see below), whose sum is σ = 18594334296. Its totient is φ = 12268425216.

The previous prime is 15415405021. The next prime is 15415405139. The reversal of 15415405045 is 54050451451.

It can be written as a sum of positive squares in 4 ways, for example, as 3490328241 + 11925076804 = 59079^2 + 109202^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15415405045 - 2¹³ = 15415396853 is a prime.

It is a super-3 number, since 3×15415405045³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15415405045.

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, 7986292 + ... + 7988221.

It is an arithmetic number, because the mean of its divisors is an integer number (2324291787).

Almost surely, 2^15415405045 is an apocalyptic number.

It is an amenable number.

15415405045 is a deficient number, since it is larger than the sum of its proper divisors (3178929251).

15415405045 is a wasteful number, since it uses less digits than its factorization.

15415405045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15974711.

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 15415405045 its reverse (54050451451), we get a palindrome (69465856496).

The spelling of 15415405045 in words is "fifteen billion, four hundred fifteen million, four hundred five thousand, forty-five".