2649418356 has 24 divisors (see below), whose sum is σ = 6657513184. Its totient is φ = 815205600.

The previous prime is 2649418301. The next prime is 2649418381. The reversal of 2649418356 is 6538149462.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8491570 + ... + 8491881.

Almost surely, 2^2649418356 is an apocalyptic number.

2649418356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2649418356 is an abundant number, since it is smaller than the sum of its proper divisors (4008094828).

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

2649418356 is a wasteful number, since it uses less digits than its factorization.

2649418356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16983471 (or 16983469 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 2649418356 is about 51472.5009689640. The cubic root of 2649418356 is about 1383.7262515866.

It can be divided in two parts, 26494 and 18356, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 2649418356 in words is "two billion, six hundred forty-nine million, four hundred eighteen thousand, three hundred fifty-six".