68361132402 has 12 divisors (see below), whose sum is σ = 148115786910. Its totient is φ = 22787044128.

The previous prime is 68361132337. The next prime is 68361132407. The reversal of 68361132402 is 20423116386.

68361132402 is a `hidden beast` number, since 6 + 8 + 3 + 611 + 32 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 68298072921 + 63059481 = 261339^2 + 7941^2 .

It is not an unprimeable number, because it can be changed into a prime (68361132407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1898920327 + ... + 1898920362.

Almost surely, 2^68361132402 is an apocalyptic number.

68361132402 is an abundant number, since it is smaller than the sum of its proper divisors (79754654508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68361132402 is a wasteful number, since it uses less digits than its factorization.

68361132402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797840697 (or 3797840694 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 68361132402 its reverse (20423116386), we get a palindrome (88784248788).

The spelling of 68361132402 in words is "sixty-eight billion, three hundred sixty-one million, one hundred thirty-two thousand, four hundred two".