84477988354 has 4 divisors (see below), whose sum is σ = 126716982534. Its totient is φ = 42238994176.

The previous prime is 84477988289. The next prime is 84477988379. The reversal of 84477988354 is 45388977448.

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., 77521594329 + 6956394025 = 278427^2 + 83405^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84477988354.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21119497087 + ... + 21119497090.

Almost surely, 2^84477988354 is an apocalyptic number.

84477988354 is a deficient number, since it is larger than the sum of its proper divisors (42238994180).

84477988354 is a wasteful number, since it uses less digits than its factorization.

84477988354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42238994179.

The product of its digits is 216760320, while the sum is 67.

The spelling of 84477988354 in words is "eighty-four billion, four hundred seventy-seven million, nine hundred eighty-eight thousand, three hundred fifty-four".