2097792778 has 16 divisors (see below), whose sum is σ = 3257856000. Its totient is φ = 1011899952.

The previous prime is 2097792761. The next prime is 2097792779. The reversal of 2097792778 is 8772977902.

It is a super-3 number, since 3×2097792778³ (a number of 29 digits) contains 333 as substring.

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 (2097792779) 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, 60043 + ... + 88321.

It is an arithmetic number, because the mean of its divisors is an integer number (203616000).

Almost surely, 2^2097792778 is an apocalyptic number.

2097792778 is a deficient number, since it is larger than the sum of its proper divisors (1160063222).

2097792778 is a wasteful number, since it uses less digits than its factorization.

2097792778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29589.

The product of its (nonzero) digits is 6223392, while the sum is 58.

The square root of 2097792778 is about 45801.6678517278. The cubic root of 2097792778 is about 1280.1303533424.

The spelling of 2097792778 in words is "two billion, ninety-seven million, seven hundred ninety-two thousand, seven hundred seventy-eight".