15384869401 has 6 divisors (see below), whose sum is σ = 16910641706. Its totient is φ = 13986244800.

The previous prime is 15384869399. The next prime is 15384869407. The reversal of 15384869401 is 10496848351.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15067317001 + 317552400 = 122749^2 + 17820^2 .

It is not a de Polignac number, because 15384869401 - 2¹ = 15384869399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15384869407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63573720 + ... + 63573961.

Almost surely, 2^15384869401 is an apocalyptic number.

15384869401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15384869401 is a deficient number, since it is larger than the sum of its proper divisors (1525772305).

15384869401 is a wasteful number, since it uses less digits than its factorization.

15384869401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127147703 (or 127147692 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 15384869401 in words is "fifteen billion, three hundred eighty-four million, eight hundred sixty-nine thousand, four hundred one".