2678985490 has 64 divisors (see below), whose sum is σ = 5279592960. Its totient is φ = 975546880.

The previous prime is 2678985487. The next prime is 2678985493. The reversal of 2678985490 is 945898762.

2678985490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2678985487) and next prime (2678985493).

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (2678985493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470742 + ... + 476398.

It is an arithmetic number, because the mean of its divisors is an integer number (82493640).

Almost surely, 2^2678985490 is an apocalyptic number.

2678985490 is a deficient number, since it is larger than the sum of its proper divisors (2600607470).

2678985490 is a wasteful number, since it uses less digits than its factorization.

2678985490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The square root of 2678985490 is about 51758.9170095357. The cubic root of 2678985490 is about 1388.8546177523.

The spelling of 2678985490 in words is "two billion, six hundred seventy-eight million, nine hundred eighty-five thousand, four hundred ninety".