2778674847 has 48 divisors (see below), whose sum is σ = 4098350880. Its totient is φ = 1673478144.

The previous prime is 2778674771. The next prime is 2778674849. The reversal of 2778674847 is 7484768772.

It is not a de Polignac number, because 2778674847 - 2¹⁹ = 2778150559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778674849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7142929 + ... + 7143317.

It is an arithmetic number, because the mean of its divisors is an integer number (85382310).

Almost surely, 2^2778674847 is an apocalyptic number.

2778674847 is a deficient number, since it is larger than the sum of its proper divisors (1319676033).

2778674847 is a wasteful number, since it uses less digits than its factorization.

2778674847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 671 counting only the distinct ones).

The product of its digits is 29503488, while the sum is 60.

The square root of 2778674847 is about 52713.1373283738. The cubic root of 2778674847 is about 1405.8724160465.

The spelling of 2778674847 in words is "two billion, seven hundred seventy-eight million, six hundred seventy-four thousand, eight hundred forty-seven".