61406623242 has 48 divisors (see below), whose sum is σ = 137215653120. Its totient is φ = 19832281056.

The previous prime is 61406623237. The next prime is 61406623297. The reversal of 61406623242 is 24232660416.

61406623242 is a `hidden beast` number, since 6 + 1 + 4 + 0 + 6 + 623 + 24 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61406623197 and 61406623206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33718 + ... + 352065.

It is an arithmetic number, because the mean of its divisors is an integer number (2858659440).

Almost surely, 2^61406623242 is an apocalyptic number.

61406623242 is an abundant number, since it is smaller than the sum of its proper divisors (75809029878).

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

61406623242 is a wasteful number, since it uses less digits than its factorization.

61406623242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386067 (or 386064 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 61406623242 in words is "sixty-one billion, four hundred six million, six hundred twenty-three thousand, two hundred forty-two".