61842398459042 has 8 divisors (see below), whose sum is σ = 93682049151132. Its totient is φ = 30615048742000.

The previous prime is 61842398459011. The next prime is 61842398459059. The reversal of 61842398459042 is 24095489324816.

It can be written as a sum of positive squares in 2 ways, for example, as 60984994685521 + 857403773521 = 7809289^2 + 925961^2 .

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 61842398459042.

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, 153075243509 + ... + 153075243912.

Almost surely, 2^{61842398459042} is an apocalyptic number.

61842398459042 is a deficient number, since it is larger than the sum of its proper divisors (31839650692090).

61842398459042 is a wasteful number, since it uses less digits than its factorization.

61842398459042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306150487524.

The product of its (nonzero) digits is 119439360, while the sum is 65.

The spelling of 61842398459042 in words is "sixty-one trillion, eight hundred forty-two billion, three hundred ninety-eight million, four hundred fifty-nine thousand, forty-two".