2778480492 has 24 divisors (see below), whose sum is σ = 6485707200. Its totient is φ = 925790736.

The previous prime is 2778480491. The next prime is 2778480539. The reversal of 2778480492 is 2940848772.

It is not an unprimeable number, because it can be changed into a prime (2778480491) 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, 13942 + ... + 75837.

It is an arithmetic number, because the mean of its divisors is an integer number (270237800).

Almost surely, 2^2778480492 is an apocalyptic number.

It is an amenable number.

2778480492 is an abundant number, since it is smaller than the sum of its proper divisors (3707226708).

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

2778480492 is a wasteful number, since it uses less digits than its factorization.

2778480492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92365 (or 92363 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 2778480492 is about 52711.2937803655. The cubic root of 2778480492 is about 1405.8396372677.

The spelling of 2778480492 in words is "two billion, seven hundred seventy-eight million, four hundred eighty thousand, four hundred ninety-two".