61309554019442 has 8 divisors (see below), whose sum is σ = 95962780204416. Its totient is φ = 29321960617972.

The previous prime is 61309554019429. The next prime is 61309554019499. The reversal of 61309554019442 is 24491045590316.

61309554019442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×61309554019442² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 666408195818 + ... + 666408195909.

It is an arithmetic number, because the mean of its divisors is an integer number (11995347525552).

Almost surely, 2^{61309554019442} is an apocalyptic number.

61309554019442 is a deficient number, since it is larger than the sum of its proper divisors (34653226184974).

61309554019442 is a wasteful number, since it uses less digits than its factorization.

61309554019442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332816391752.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 61309554019442 in words is "sixty-one trillion, three hundred nine billion, five hundred fifty-four million, nineteen thousand, four hundred forty-two".