8437287899401 has 9 divisors (see below), whose sum is σ = 8904785919501. Its totient is φ = 7993167830604.

The previous prime is 8437287899393. The next prime is 8437287899407. The reversal of 8437287899401 is 1049987827348.

The square root of 8437287899401 is 2904701.

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

It is not a de Polignac number, because 8437287899401 - 2³ = 8437287899393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8437287899407) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55112880 + ... + 55265758.

Almost surely, 2^{8437287899401} is an apocalyptic number.

8437287899401 is the 2904701-st square number.

8437287899401 is the 1452351-st centered octagonal number.

It is an amenable number.

8437287899401 is a deficient number, since it is larger than the sum of its proper divisors (467498020100).

8437287899401 is an frugal number, since it uses more digits than its factorization.

8437287899401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305796 (or 152898 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 70.

The spelling of 8437287899401 in words is "eight trillion, four hundred thirty-seven billion, two hundred eighty-seven million, eight hundred ninety-nine thousand, four hundred one".