61404325242 has 16 divisors (see below), whose sum is σ = 132255469920. Its totient is φ = 18893638512.

The previous prime is 61404325237. The next prime is 61404325243. The reversal of 61404325242 is 24252340416.

It is not an unprimeable number, because it can be changed into a prime (61404325243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393617392 + ... + 393617547.

It is an arithmetic number, because the mean of its divisors is an integer number (8265966870).

Almost surely, 2^61404325242 is an apocalyptic number.

61404325242 is an abundant number, since it is smaller than the sum of its proper divisors (70851144678).

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

61404325242 is a wasteful number, since it uses less digits than its factorization.

61404325242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787234957.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 61404325242 its reverse (24252340416), we get a palindrome (85656665658).

The spelling of 61404325242 in words is "sixty-one billion, four hundred four million, three hundred twenty-five thousand, two hundred forty-two".