84707969919 has 16 divisors (see below), whose sum is σ = 113209374720. Its totient is φ = 56339336160.

The previous prime is 84707969917. The next prime is 84707969921. The reversal of 84707969919 is 91996970748.

It is an interprime number because it is at equal distance from previous prime (84707969917) and next prime (84707969921).

It is not a de Polignac number, because 84707969919 - 2¹ = 84707969917 is a prime.

It is a super-2 number, since 2×84707969919² (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 (84707969917) 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, 10007349 + ... + 10015809.

It is an arithmetic number, because the mean of its divisors is an integer number (7075585920).

Almost surely, 2^84707969919 is an apocalyptic number.

84707969919 is a deficient number, since it is larger than the sum of its proper divisors (28501404801).

84707969919 is a wasteful number, since it uses less digits than its factorization.

84707969919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15910.

The product of its (nonzero) digits is 61725888, while the sum is 69.

The spelling of 84707969919 in words is "eighty-four billion, seven hundred seven million, nine hundred sixty-nine thousand, nine hundred nineteen".