3878758426801 has 4 divisors (see below), whose sum is σ = 3879151381504. Its totient is φ = 3878365472100.

The previous prime is 3878758426799. The next prime is 3878758426811. The reversal of 3878758426801 is 1086248578783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3878758426801 - 2¹ = 3878758426799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3878758426811) 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, 196462545 + ... + 196482286.

It is an arithmetic number, because the mean of its divisors is an integer number (969787845376).

Almost surely, 2^{3878758426801} is an apocalyptic number.

It is an amenable number.

3878758426801 is a deficient number, since it is larger than the sum of its proper divisors (392954703).

3878758426801 is an equidigital number, since it uses as much as digits as its factorization.

3878758426801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392954702.

The product of its (nonzero) digits is 144506880, while the sum is 67.

The spelling of 3878758426801 in words is "three trillion, eight hundred seventy-eight billion, seven hundred fifty-eight million, four hundred twenty-six thousand, eight hundred one".