15399014401 has 2 divisors, whose sum is σ = 15399014402. Its totient is φ = 15399014400.

The previous prime is 15399014387. The next prime is 15399014453. The reversal of 15399014401 is 10441099351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15380960400 + 18054001 = 124020^2 + 4249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15399014401 is a prime.

It is not a weakly prime, because it can be changed into another prime (15399014801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7699507200 + 7699507201.

It is an arithmetic number, because the mean of its divisors is an integer number (7699507201).

Almost surely, 2^15399014401 is an apocalyptic number.

It is an amenable number.

15399014401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15399014401 is an equidigital number, since it uses as much as digits as its factorization.

15399014401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 15399014401 in words is "fifteen billion, three hundred ninety-nine million, fourteen thousand, four hundred one".