15121368490 has 8 divisors (see below), whose sum is σ = 27218463300. Its totient is φ = 6048547392.

The previous prime is 15121368401. The next prime is 15121368503. The reversal of 15121368490 is 9486312151.

15121368490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14917935321 + 203433169 = 122139^2 + 14263^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756068415 + ... + 756068434.

Almost surely, 2^15121368490 is an apocalyptic number.

15121368490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15121368490 is a deficient number, since it is larger than the sum of its proper divisors (12097094810).

15121368490 is a wasteful number, since it uses less digits than its factorization.

15121368490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512136856.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 15121368490 in words is "fifteen billion, one hundred twenty-one million, three hundred sixty-eight thousand, four hundred ninety".