84205896381 has 16 divisors (see below), whose sum is σ = 124820467200. Its totient is φ = 56105318304.

The previous prime is 84205896353. The next prime is 84205896427. The reversal of 84205896381 is 18369850248.

84205896381 is a `hidden beast` number, since 8 + 4 + 20 + 589 + 6 + 38 + 1 = 666.

It is not a de Polignac number, because 84205896381 - 2⁹ = 84205895869 is a prime.

It is a super-2 number, since 2×84205896381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84205896311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839016 + ... + 934001.

It is an arithmetic number, because the mean of its divisors is an integer number (7801279200).

Almost surely, 2^84205896381 is an apocalyptic number.

It is an amenable number.

84205896381 is a deficient number, since it is larger than the sum of its proper divisors (40614570819).

84205896381 is a wasteful number, since it uses less digits than its factorization.

84205896381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774785 (or 1774779 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 84205896381 in words is "eighty-four billion, two hundred five million, eight hundred ninety-six thousand, three hundred eighty-one".