42912568402378 has 8 divisors (see below), whose sum is σ = 64369345680900. Its totient is φ = 21456119842080.

The previous prime is 42912568402373. The next prime is 42912568402399. The reversal of 42912568402378 is 87320486521924.

It can be written as a sum of positive squares in 2 ways, for example, as 34962350932609 + 7950217469769 = 5912897^2 + 2819613^2 .

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 (42912568402373) 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, 81852933 + ... + 82375528.

It is a 1-persistent number, because it is pandigital, but 2⋅42912568402378 = 85825136804756 is not.

Almost surely, 2^{42912568402378} is an apocalyptic number.

42912568402378 is a deficient number, since it is larger than the sum of its proper divisors (21456777278522).

42912568402378 is a wasteful number, since it uses less digits than its factorization.

42912568402378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164359112.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 42912568402378 in words is "forty-two trillion, nine hundred twelve billion, five hundred sixty-eight million, four hundred two thousand, three hundred seventy-eight".