2720192787 has 64 divisors (see below), whose sum is σ = 4422830720. Its totient is φ = 1662819840.

The previous prime is 2720192767. The next prime is 2720192801. The reversal of 2720192787 is 7872910272.

It is not a de Polignac number, because 2720192787 - 2¹⁰ = 2720191763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720192747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6851673 + ... + 6852069.

It is an arithmetic number, because the mean of its divisors is an integer number (69106730).

Almost surely, 2^2720192787 is an apocalyptic number.

2720192787 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2720192787 is a deficient number, since it is larger than the sum of its proper divisors (1702637933).

2720192787 is an equidigital number, since it uses as much as digits as its factorization.

2720192787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 2720192787 is about 52155.4674698636. The cubic root of 2720192787 is about 1395.9393880890.

The spelling of 2720192787 in words is "two billion, seven hundred twenty million, one hundred ninety-two thousand, seven hundred eighty-seven".