15238428208490 has 16 divisors (see below), whose sum is σ = 27776375470080. Its totient is φ = 6018214684560.

The previous prime is 15238428208489. The next prime is 15238428208547. The reversal of 15238428208490 is 9480282483251.

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, 9644574026 + ... + 9644575605.

It is an arithmetic number, because the mean of its divisors is an integer number (1736023466880).

Almost surely, 2^{15238428208490} is an apocalyptic number.

15238428208490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15238428208490 is a deficient number, since it is larger than the sum of its proper divisors (12537947261590).

15238428208490 is a wasteful number, since it uses less digits than its factorization.

15238428208490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19289149717.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 15238428208490 in words is "fifteen trillion, two hundred thirty-eight billion, four hundred twenty-eight million, two hundred eight thousand, four hundred ninety".