84035378644 has 24 divisors (see below), whose sum is σ = 168413087808. Its totient is φ = 35941805760.

The previous prime is 84035378641. The next prime is 84035378653. The reversal of 84035378644 is 44687353048.

It is a junction number, because it is equal to n+sod(n) for n = 84035378591 and 84035378600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84035378641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3042529 + ... + 3070024.

It is an arithmetic number, because the mean of its divisors is an integer number (7017211992).

Almost surely, 2^84035378644 is an apocalyptic number.

It is an amenable number.

84035378644 is an abundant number, since it is smaller than the sum of its proper divisors (84377709164).

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

84035378644 is a wasteful number, since it uses less digits than its factorization.

84035378644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113055 (or 6113053 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 52.

The spelling of 84035378644 in words is "eighty-four billion, thirty-five million, three hundred seventy-eight thousand, six hundred forty-four".