84072945777 has 8 divisors (see below), whose sum is σ = 117997116960. Its totient is φ = 53098702560.

The previous prime is 84072945727. The next prime is 84072945811. The reversal of 84072945777 is 77754927048.

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

It is not a de Polignac number, because 84072945777 - 2⁸ = 84072945521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84072945777.

It is not an unprimeable number, because it can be changed into a prime (84072945727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737481924 + ... + 737482037.

It is an arithmetic number, because the mean of its divisors is an integer number (14749639620).

Almost surely, 2^84072945777 is an apocalyptic number.

It is an amenable number.

84072945777 is a deficient number, since it is larger than the sum of its proper divisors (33924171183).

84072945777 is a wasteful number, since it uses less digits than its factorization.

84072945777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474963983.

The product of its (nonzero) digits is 27659520, while the sum is 60.

The spelling of 84072945777 in words is "eighty-four billion, seventy-two million, nine hundred forty-five thousand, seven hundred seventy-seven".