84671999997 has 32 divisors (see below), whose sum is σ = 124449228288. Its totient is φ = 50877118656.

The previous prime is 84671999983. The next prime is 84672000019. The reversal of 84671999997 is 79999917648.

It is not a de Polignac number, because 84671999997 - 2¹² = 84671995901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84671999917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6545578 + ... + 6558500.

It is an arithmetic number, because the mean of its divisors is an integer number (3889038384).

Almost surely, 2^84671999997 is an apocalyptic number.

It is an amenable number.

84671999997 is a deficient number, since it is larger than the sum of its proper divisors (39777228291).

84671999997 is a wasteful number, since it uses less digits than its factorization.

84671999997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16889.

The product of its digits is 555532992, while the sum is 78.

The spelling of 84671999997 in words is "eighty-four billion, six hundred seventy-one million, nine hundred ninety-nine thousand, nine hundred ninety-seven".