68463339025 has 27 divisors (see below), whose sum is σ = 86986221681. Its totient is φ = 53452976640.

The previous prime is 68463339019. The next prime is 68463339059. The reversal of 68463339025 is 52093336486.

The square root of 68463339025 is 261655.

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

It can be written as a sum of positive squares in 4 ways, for example, as 6348743041 + 62114595984 = 79679^2 + 249228^2 .

It is not a de Polignac number, because 68463339025 - 2³¹ = 66315855377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68463339025.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 56255217 + ... + 56256433.

Almost surely, 2^68463339025 is an apocalyptic number.

68463339025 is the 261655-th square number.

68463339025 is the 130828-th centered octagonal number.

It is an amenable number.

68463339025 is a deficient number, since it is larger than the sum of its proper divisors (18522882656).

68463339025 is an frugal number, since it uses more digits than its factorization.

68463339025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

Multiplying 68463339025 by its sum of digits (49), we get a square (3354703612225 = 1831585²).

The spelling of 68463339025 in words is "sixty-eight billion, four hundred sixty-three million, three hundred thirty-nine thousand, twenty-five".