42770217378 has 64 divisors (see below), whose sum is σ = 101283759360. Its totient is φ = 11780923392.

The previous prime is 42770217367. The next prime is 42770217389. The reversal of 42770217378 is 87371207724.

It is an interprime number because it is at equal distance from previous prime (42770217367) and next prime (42770217389).

It is a super-2 number, since 2×42770217378² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793626 + ... + 845802.

It is an arithmetic number, because the mean of its divisors is an integer number (1582558740).

Almost surely, 2^42770217378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42770217378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50641879680).

42770217378 is an abundant number, since it is smaller than the sum of its proper divisors (58513541982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42770217378 is a wasteful number, since it uses less digits than its factorization.

42770217378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52891.

The product of its (nonzero) digits is 921984, while the sum is 48.

The spelling of 42770217378 in words is "forty-two billion, seven hundred seventy million, two hundred seventeen thousand, three hundred seventy-eight".