61511461442 has 8 divisors (see below), whose sum is σ = 92301589776. Its totient is φ = 30744264852.

The previous prime is 61511461423. The next prime is 61511461457. The reversal of 61511461442 is 24416411516.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5726228 + ... + 5736959.

It is an arithmetic number, because the mean of its divisors is an integer number (11537698722).

Almost surely, 2^61511461442 is an apocalyptic number.

61511461442 is a deficient number, since it is larger than the sum of its proper divisors (30790128334).

61511461442 is a wasteful number, since it uses less digits than its factorization.

61511461442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11465872.

The product of its digits is 23040, while the sum is 35.

Adding to 61511461442 its reverse (24416411516), we get a palindrome (85927872958).

The spelling of 61511461442 in words is "sixty-one billion, five hundred eleven million, four hundred sixty-one thousand, four hundred forty-two".