15213270377 has 2 divisors, whose sum is σ = 15213270378. Its totient is φ = 15213270376.

The previous prime is 15213270349. The next prime is 15213270433. The reversal of 15213270377 is 77307231251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10206858841 + 5006411536 = 101029^2 + 70756^2 .

It is a cyclic number.

It is not a de Polignac number, because 15213270377 - 2²⁴ = 15196493161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15213270377.

It is not a weakly prime, because it can be changed into another prime (15213270307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606635188 + 7606635189.

It is an arithmetic number, because the mean of its divisors is an integer number (7606635189).

Almost surely, 2^15213270377 is an apocalyptic number.

It is an amenable number.

15213270377 is a deficient number, since it is larger than the sum of its proper divisors (1).

15213270377 is an equidigital number, since it uses as much as digits as its factorization.

15213270377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 38.

The spelling of 15213270377 in words is "fifteen billion, two hundred thirteen million, two hundred seventy thousand, three hundred seventy-seven".