84415923674 has 4 divisors (see below), whose sum is σ = 126623885514. Its totient is φ = 42207961836.

The previous prime is 84415923587. The next prime is 84415923677. The reversal of 84415923674 is 47632951448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71735587225 + 12680336449 = 267835^2 + 112607^2 .

It is not an unprimeable number, because it can be changed into a prime (84415923677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21103980917 + ... + 21103980920.

Almost surely, 2^84415923674 is an apocalyptic number.

84415923674 is a deficient number, since it is larger than the sum of its proper divisors (42207961840).

84415923674 is a wasteful number, since it uses less digits than its factorization.

84415923674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42207961839.

The product of its digits is 5806080, while the sum is 53.

The spelling of 84415923674 in words is "eighty-four billion, four hundred fifteen million, nine hundred twenty-three thousand, six hundred seventy-four".