2781417312 has 48 divisors (see below), whose sum is σ = 8112469680. Its totient is φ = 927138816.

The previous prime is 2781417299. The next prime is 2781417319. The reversal of 2781417312 is 2137141872.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781417319) 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, 1608753 + ... + 1610480.

It is an arithmetic number, because the mean of its divisors is an integer number (169009785).

Almost surely, 2^2781417312 is an apocalyptic number.

It is an amenable number.

2781417312 is an abundant number, since it is smaller than the sum of its proper divisors (5331052368).

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

2781417312 is a wasteful number, since it uses less digits than its factorization.

2781417312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219252 (or 3219238 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 2781417312 is about 52739.1440203574. The cubic root of 2781417312 is about 1406.3347813063.

The spelling of 2781417312 in words is "two billion, seven hundred eighty-one million, four hundred seventeen thousand, three hundred twelve".