84210928965 has 16 divisors (see below), whose sum is σ = 149708318400. Its totient is φ = 44912495376.

The previous prime is 84210928939. The next prime is 84210928993. The reversal of 84210928965 is 56982901248.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-84210928965 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311892195 + ... + 311892464.

It is an arithmetic number, because the mean of its divisors is an integer number (9356769900).

Almost surely, 2^84210928965 is an apocalyptic number.

It is an amenable number.

84210928965 is a deficient number, since it is larger than the sum of its proper divisors (65497389435).

84210928965 is a wasteful number, since it uses less digits than its factorization.

84210928965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623784673 (or 623784667 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 84210928965 in words is "eighty-four billion, two hundred ten million, nine hundred twenty-eight thousand, nine hundred sixty-five".