2061770368 has 64 divisors (see below), whose sum is σ = 4740894720. Its totient is φ = 874828800.

The previous prime is 2061770363. The next prime is 2061770383. The reversal of 2061770368 is 8630771602.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 2061770368.

It is not an unprimeable number, because it can be changed into a prime (2061770363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79105 + ... + 101887.

It is an arithmetic number, because the mean of its divisors is an integer number (74076480).

Almost surely, 2^2061770368 is an apocalyptic number.

2061770368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2061770368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2370447360).

2061770368 is an abundant number, since it is smaller than the sum of its proper divisors (2679124352).

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

2061770368 is a wasteful number, since it uses less digits than its factorization.

2061770368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22905 (or 22893 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 2061770368 is about 45406.7216169589. The cubic root of 2061770368 is about 1272.7607226533.

The spelling of 2061770368 in words is "two billion, sixty-one million, seven hundred seventy thousand, three hundred sixty-eight".