42742446346450 has 48 divisors (see below), whose sum is σ = 82464190766496. Its totient is φ = 16470615772800.

The previous prime is 42742446346429. The next prime is 42742446346469. The reversal of 42742446346450 is 5464364424724.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42742446346391 and 42742446346400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136008856 + ... + 136322755.

It is an arithmetic number, because the mean of its divisors is an integer number (1718003974302).

Almost surely, 2^{42742446346450} is an apocalyptic number.

42742446346450 is a deficient number, since it is larger than the sum of its proper divisors (39721744420046).

42742446346450 is a wasteful number, since it uses less digits than its factorization.

42742446346450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272331739 (or 272331734 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 55.

The spelling of 42742446346450 in words is "forty-two trillion, seven hundred forty-two billion, four hundred forty-six million, three hundred forty-six thousand, four hundred fifty".