61443535641622 has 8 divisors (see below), whose sum is σ = 92507925409200. Its totient is φ = 30607560505224.

The previous prime is 61443535641557. The next prime is 61443535641679. The reversal of 61443535641622 is 22614653534416.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61443535641622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57103657122 + ... + 57103658197.

It is an arithmetic number, because the mean of its divisors is an integer number (11563490676150).

Almost surely, 2^{61443535641622} is an apocalyptic number.

61443535641622 is a deficient number, since it is larger than the sum of its proper divisors (31064389767578).

61443535641622 is a wasteful number, since it uses less digits than its factorization.

61443535641622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114207315590.

The product of its digits is 12441600, while the sum is 52.

The spelling of 61443535641622 in words is "sixty-one trillion, four hundred forty-three billion, five hundred thirty-five million, six hundred forty-one thousand, six hundred twenty-two".