908916263641 has 9 divisors (see below), whose sum is σ = 912964043071. Its totient is φ = 904886364424.

The previous prime is 908916263617. The next prime is 908916263693. The reversal of 908916263641 is 146362619809.

It is a happy number.

The square root of 908916263641 is 953371.

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

It can be written as a sum of positive squares in only one way, i.e., 428528653641 + 480387610000 = 654621^2 + 693100^2 .

It is not a de Polignac number, because 908916263641 - 2¹¹ = 908916261593 is a prime.

It is a super-2 number, since 2×908916263641² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (908916260641) 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, 227853675 + ... + 227857663.

Almost surely, 2^908916263641 is an apocalyptic number.

908916263641 is the 953371-st square number.

908916263641 is the 476686-th centered octagonal number.

It is an amenable number.

908916263641 is a deficient number, since it is larger than the sum of its proper divisors (4047779430).

908916263641 is an frugal number, since it uses more digits than its factorization.

908916263641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456 (or 4228 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 908916263641 in words is "nine hundred eight billion, nine hundred sixteen million, two hundred sixty-three thousand, six hundred forty-one".