2781484624 has 10 divisors (see below), whose sum is σ = 5389126490. Its totient is φ = 1390742304.

The previous prime is 2781484619. The next prime is 2781484633. The reversal of 2781484624 is 4264841872.

It can be written as a sum of positive squares in only one way, i.e., 1661377600 + 1120107024 = 40760^2 + 33468^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86921379 + ... + 86921410.

It is an arithmetic number, because the mean of its divisors is an integer number (538912649).

Almost surely, 2^2781484624 is an apocalyptic number.

It is an amenable number.

2781484624 is a deficient number, since it is larger than the sum of its proper divisors (2607641866).

2781484624 is a wasteful number, since it uses less digits than its factorization.

2781484624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173842797 (or 173842791 counting only the distinct ones).

The product of its digits is 688128, while the sum is 46.

The square root of 2781484624 is about 52739.7821762661. The cubic root of 2781484624 is about 1406.3461259354.

The spelling of 2781484624 in words is "two billion, seven hundred eighty-one million, four hundred eighty-four thousand, six hundred twenty-four".