61343023145 has 8 divisors (see below), whose sum is σ = 73648464000. Its totient is φ = 49049861040.

The previous prime is 61343023127. The next prime is 61343023207. The reversal of 61343023145 is 54132034316.

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

It is not a de Polignac number, because 61343023145 - 2⁶ = 61343023081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3058691 + ... + 3078680.

It is an arithmetic number, because the mean of its divisors is an integer number (9206058000).

Almost surely, 2^61343023145 is an apocalyptic number.

It is an amenable number.

61343023145 is a deficient number, since it is larger than the sum of its proper divisors (12305440855).

61343023145 is a wasteful number, since it uses less digits than its factorization.

61343023145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139375.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 61343023145 in words is "sixty-one billion, three hundred forty-three million, twenty-three thousand, one hundred forty-five".