84253777878011 has 8 divisors (see below), whose sum is σ = 96308040138240. Its totient is φ = 72204017687208.

The previous prime is 84253777878007. The next prime is 84253777878091. The reversal of 84253777878011 is 11087877735248.

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 84253777878011 - 2² = 84253777878007 is a prime.

It is a super-2 number, since 2×84253777878011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84253777878001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125477251 + ... + 1125552108.

It is an arithmetic number, because the mean of its divisors is an integer number (12038505017280).

Almost surely, 2^{84253777878011} is an apocalyptic number.

84253777878011 is a deficient number, since it is larger than the sum of its proper divisors (12054262260229).

84253777878011 is a wasteful number, since it uses less digits than its factorization.

84253777878011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251034713.

The product of its (nonzero) digits is 147517440, while the sum is 68.

The spelling of 84253777878011 in words is "eighty-four trillion, two hundred fifty-three billion, seven hundred seventy-seven million, eight hundred seventy-eight thousand, eleven".