84003987969 has 48 divisors (see below), whose sum is σ = 146250209664. Its totient is φ = 45833356800.

The previous prime is 84003987929. The next prime is 84003987973. The reversal of 84003987969 is 96978930048.

It is not a de Polignac number, because 84003987969 - 2⁸ = 84003987713 is a prime.

It is a super-2 number, since 2×84003987969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84003987929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1046362 + ... + 1123779.

It is an arithmetic number, because the mean of its divisors is an integer number (3046879368).

Almost surely, 2^84003987969 is an apocalyptic number.

It is an amenable number.

84003987969 is a deficient number, since it is larger than the sum of its proper divisors (62246221695).

84003987969 is a wasteful number, since it uses less digits than its factorization.

84003987969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170198 (or 2170195 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 84003987969 in words is "eighty-four billion, three million, nine hundred eighty-seven thousand, nine hundred sixty-nine".