78465307020242 has 8 divisors (see below), whose sum is σ = 117699809893500. Its totient is φ = 39232037055744.

The previous prime is 78465307020241. The next prime is 78465307020329. The reversal of 78465307020242 is 24202070356487.

It can be written as a sum of positive squares in 2 ways, for example, as 73602175047241 + 4863131973001 = 8579171^2 + 2205251^2 .

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

It is not an unprimeable number, because it can be changed into a prime (78465307020241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308068067 + ... + 308322662.

Almost surely, 2^{78465307020242} is an apocalyptic number.

78465307020242 is a deficient number, since it is larger than the sum of its proper divisors (39234502873258).

78465307020242 is a wasteful number, since it uses less digits than its factorization.

78465307020242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616454380.

The product of its (nonzero) digits is 4515840, while the sum is 50.

The spelling of 78465307020242 in words is "seventy-eight trillion, four hundred sixty-five billion, three hundred seven million, twenty thousand, two hundred forty-two".