2618969388 has 24 divisors (see below), whose sum is σ = 6983918592. Its totient is φ = 748276944.

The previous prime is 2618969387. The next prime is 2618969393. The reversal of 2618969388 is 8839698162.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2618969387) 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, 15589020 + ... + 15589187.

It is an arithmetic number, because the mean of its divisors is an integer number (290996608).

Almost surely, 2^2618969388 is an apocalyptic number.

2618969388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2618969388 is an abundant number, since it is smaller than the sum of its proper divisors (4364949204).

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

2618969388 is a wasteful number, since it uses less digits than its factorization.

2618969388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31178221 (or 31178219 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 60.

The square root of 2618969388 is about 51175.8672422852. The cubic root of 2618969388 is about 1378.4048971569.

The spelling of 2618969388 in words is "two billion, six hundred eighteen million, nine hundred sixty-nine thousand, three hundred eighty-eight".