68618954 has 4 divisors (see below), whose sum is σ = 102928434. Its totient is φ = 34309476.

The previous prime is 68618933. The next prime is 68618969. The reversal of 68618954 is 45981686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66863329 + 1755625 = 8177^2 + 1325^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68618899 and 68618908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17154737 + ... + 17154740.

Almost surely, 2^68618954 is an apocalyptic number.

68618954 is a deficient number, since it is larger than the sum of its proper divisors (34309480).

68618954 is a wasteful number, since it uses less digits than its factorization.

68618954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34309479.

The product of its digits is 414720, while the sum is 47.

The square root of 68618954 is about 8283.6558354388. The cubic root of 68618954 is about 409.4001818047.

The spelling of 68618954 in words is "sixty-eight million, six hundred eighteen thousand, nine hundred fifty-four".