68761950625 has 45 divisors (see below), whose sum is σ = 91424835469. Its totient is φ = 51689792000.

The previous prime is 68761950623. The next prime is 68761950661. The reversal of 68761950625 is 52605916786.

The square root of 68761950625 is 262225.

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

It can be written as a sum of positive squares in 22 ways, for example, as 46663344289 + 22098606336 = 216017^2 + 148656^2 .

It is not a de Polignac number, because 68761950625 - 2¹ = 68761950623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68761950623) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 111445317 + ... + 111445933.

Almost surely, 2^68761950625 is an apocalyptic number.

68761950625 is the 262225-th square number.

68761950625 is the 131113-rd centered octagonal number.

It is an amenable number.

68761950625 is a deficient number, since it is larger than the sum of its proper divisors (22662884844).

68761950625 is an frugal number, since it uses more digits than its factorization.

68761950625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 68761950625 in words is "sixty-eight billion, seven hundred sixty-one million, nine hundred fifty thousand, six hundred twenty-five".