1984377085011 has 40 divisors (see below), whose sum is σ = 3009384318864. Its totient is φ = 1302815923200.

The previous prime is 1984377085001. The next prime is 1984377085013. The reversal of 1984377085011 is 1105807734891.

1984377085011 is a `hidden beast` number, since 1 + 98 + 43 + 7 + 7 + 0 + 8 + 501 + 1 = 666.

It is not a de Polignac number, because 1984377085011 - 2⁵ = 1984377084979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1984377085013) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20536411 + ... + 20632811.

Almost surely, 2^{1984377085011} is an apocalyptic number.

1984377085011 is a deficient number, since it is larger than the sum of its proper divisors (1025007233853).

1984377085011 is an equidigital number, since it uses as much as digits as its factorization.

1984377085011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100273 (or 100264 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 1984377085011 in words is "one trillion, nine hundred eighty-four billion, three hundred seventy-seven million, eighty-five thousand, eleven".