15297868740001 has 3 divisors (see below), whose sum is σ = 15297872651251. Its totient is φ = 15297864828752.

The previous prime is 15297868739999. The next prime is 15297868740103. The reversal of 15297868740001 is 10004786879251.

The square root of 15297868740001 is 3911249.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7846715837601 + 7451152902400 = 2801199^2 + 2729680^2 .

It is not a de Polignac number, because 15297868740001 - 2¹ = 15297868739999 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15297868740701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1955625 + ... + 5866873.

Almost surely, 2^{15297868740001} is an apocalyptic number.

15297868740001 is the 3911249-th square number.

15297868740001 is the 1955625-th centered octagonal number.

It is an amenable number.

15297868740001 is a deficient number, since it is larger than the sum of its proper divisors (3911250).

15297868740001 is an frugal number, since it uses more digits than its factorization.

15297868740001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822498 (or 3911249 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 58.

The spelling of 15297868740001 in words is "fifteen trillion, two hundred ninety-seven billion, eight hundred sixty-eight million, seven hundred forty thousand, one".