3890678186399 has 4 divisors (see below), whose sum is σ = 3892025843664. Its totient is φ = 3889330529136.

The previous prime is 3890678186383. The next prime is 3890678186411. The reversal of 3890678186399 is 9936818760983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3890678186399 - 2⁴ = 3890678186383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890678182399) 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, 673824302 + ... + 673830075.

It is an arithmetic number, because the mean of its divisors is an integer number (973006460916).

Almost surely, 2^{3890678186399} is an apocalyptic number.

3890678186399 is a deficient number, since it is larger than the sum of its proper divisors (1347657265).

3890678186399 is a wasteful number, since it uses less digits than its factorization.

3890678186399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347657264.

The product of its (nonzero) digits is 846526464, while the sum is 77.

The spelling of 3890678186399 in words is "three trillion, eight hundred ninety billion, six hundred seventy-eight million, one hundred eighty-six thousand, three hundred ninety-nine".