84670871977 has 8 divisors (see below), whose sum is σ = 89466125760. Its totient is φ = 79909507440.

The previous prime is 84670871963. The next prime is 84670872017. The reversal of 84670871977 is 77917807648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84670871977 - 2¹⁹ = 84670347689 is a prime.

It is a super-2 number, since 2×84670871977² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84670871917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8467174 + ... + 8477167.

It is an arithmetic number, because the mean of its divisors is an integer number (11183265720).

Almost surely, 2^84670871977 is an apocalyptic number.

It is an amenable number.

84670871977 is a deficient number, since it is larger than the sum of its proper divisors (4795253783).

84670871977 is a wasteful number, since it uses less digits than its factorization.

84670871977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16944623.

The product of its (nonzero) digits is 33191424, while the sum is 64.

The spelling of 84670871977 in words is "eighty-four billion, six hundred seventy million, eight hundred seventy-one thousand, nine hundred seventy-seven".