15218842045 has 8 divisors (see below), whose sum is σ = 19922847840. Its totient is φ = 11068248720.

The previous prime is 15218842031. The next prime is 15218842057. The reversal of 15218842045 is 54024881251.

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

It is not a de Polignac number, because 15218842045 - 2⁵ = 15218842013 is a prime.

It is a super-2 number, since 2×15218842045² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15218841989 and 15218842007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138353055 + ... + 138353164.

It is an arithmetic number, because the mean of its divisors is an integer number (2490355980).

Almost surely, 2^15218842045 is an apocalyptic number.

It is an amenable number.

15218842045 is a deficient number, since it is larger than the sum of its proper divisors (4704005795).

15218842045 is a wasteful number, since it uses less digits than its factorization.

15218842045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276706235.

The product of its (nonzero) digits is 102400, while the sum is 40.

The spelling of 15218842045 in words is "fifteen billion, two hundred eighteen million, eight hundred forty-two thousand, forty-five".