15790477249 has 4 divisors (see below), whose sum is σ = 16088410836. Its totient is φ = 15492543664.

The previous prime is 15790477237. The next prime is 15790477267. The reversal of 15790477249 is 94277409751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94277409751 = 7 ⋅13468201393.

It can be written as a sum of positive squares in 2 ways, for example, as 5159836224 + 10630641025 = 71832^2 + 103105^2 .

It is a cyclic number.

It is not a de Polignac number, because 15790477249 - 2¹⁷ = 15790346177 is a prime.

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 15790477249.

It is not an unprimeable number, because it can be changed into a prime (15790477229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148966714 + ... + 148966819.

It is an arithmetic number, because the mean of its divisors is an integer number (4022102709).

Almost surely, 2^15790477249 is an apocalyptic number.

It is an amenable number.

15790477249 is a deficient number, since it is larger than the sum of its proper divisors (297933587).

15790477249 is an equidigital number, since it uses as much as digits as its factorization.

15790477249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297933586.

The product of its (nonzero) digits is 4445280, while the sum is 55.

It can be divided in two parts, 15790 and 477249, that added together give a cube (493039 = 79³).

The spelling of 15790477249 in words is "fifteen billion, seven hundred ninety million, four hundred seventy-seven thousand, two hundred forty-nine".