2898192978 has 18 divisors (see below), whose sum is σ = 6279913029. Its totient is φ = 965988192.

The previous prime is 2898192967. The next prime is 2898193009. The reversal of 2898192978 is 8792918982.

It can be written as a sum of positive squares in 2 ways, for example, as 2361668409 + 536524569 = 48597^2 + 23163^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=38067.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 222058 + ... + 234746.

Almost surely, 2^2898192978 is an apocalyptic number.

2898192978 is an abundant number, since it is smaller than the sum of its proper divisors (3381720051).

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

2898192978 is an frugal number, since it uses more digits than its factorization.

2898192978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25386 (or 12694 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 63.

The square root of 2898192978 is about 53834.8676788566. The cubic root of 2898192978 is about 1425.7468911936.

The spelling of 2898192978 in words is "two billion, eight hundred ninety-eight million, one hundred ninety-two thousand, nine hundred seventy-eight".