211064770774140 has 96 divisors (see below), whose sum is σ = 634558277090304. Its totient is φ = 52227018654720.

The previous prime is 211064770773977. The next prime is 211064770774141. The reversal of 211064770774140 is 41477077460112.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211064770774141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1457154664 + ... + 1457299503.

It is an arithmetic number, because the mean of its divisors is an integer number (6609982053024).

Almost surely, 2^{211064770774140} is an apocalyptic number.

211064770774140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211064770774140 is an abundant number, since it is smaller than the sum of its proper divisors (423493506316164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211064770774140 is a wasteful number, since it uses less digits than its factorization.

211064770774140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914454267 (or 2914454265 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 51.

The spelling of 211064770774140 in words is "two hundred eleven trillion, sixty-four billion, seven hundred seventy million, seven hundred seventy-four thousand, one hundred forty".