2780616090 has 64 divisors (see below), whose sum is σ = 7639511040. Its totient is φ = 634512960.

The previous prime is 2780616071. The next prime is 2780616109. The reversal of 2780616090 is 906160872.

It is an interprime number because it is at equal distance from previous prime (2780616071) and next prime (2780616109).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119295 + ... + 140685.

It is an arithmetic number, because the mean of its divisors is an integer number (119367360).

Almost surely, 2^2780616090 is an apocalyptic number.

2780616090 is an abundant number, since it is smaller than the sum of its proper divisors (4858894950).

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

2780616090 is a wasteful number, since it uses less digits than its factorization.

2780616090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22027.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2780616090 is about 52731.5473886363. The cubic root of 2780616090 is about 1406.1997309043.

The spelling of 2780616090 in words is "two billion, seven hundred eighty million, six hundred sixteen thousand, ninety".