2720978371 has 2 divisors, whose sum is σ = 2720978372. Its totient is φ = 2720978370.

The previous prime is 2720978363. The next prime is 2720978387. The reversal of 2720978371 is 1738790272.

It is a happy number.

2720978371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2720978371 - 2³ = 2720978363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2720978311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360489185 + 1360489186.

It is an arithmetic number, because the mean of its divisors is an integer number (1360489186).

Almost surely, 2^2720978371 is an apocalyptic number.

2720978371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720978371 is an equidigital number, since it uses as much as digits as its factorization.

2720978371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 2720978371 is about 52162.9981021030. The cubic root of 2720978371 is about 1396.0737562734.

The spelling of 2720978371 in words is "two billion, seven hundred twenty million, nine hundred seventy-eight thousand, three hundred seventy-one".