2402770991 has 2 divisors, whose sum is σ = 2402770992. Its totient is φ = 2402770990.

The previous prime is 2402770987. The next prime is 2402770999. The reversal of 2402770991 is 1990772042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2402770991 - 2² = 2402770987 is a prime.

It is a super-2 number, since 2×2402770991² = 11546616870382244162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2402770999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201385495 + 1201385496.

It is an arithmetic number, because the mean of its divisors is an integer number (1201385496).

Almost surely, 2^2402770991 is an apocalyptic number.

2402770991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402770991 is an equidigital number, since it uses as much as digits as its factorization.

2402770991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 2402770991 is about 49018.0680055834. The cubic root of 2402770991 is about 1339.3809777269.

The spelling of 2402770991 in words is "two billion, four hundred two million, seven hundred seventy thousand, nine hundred ninety-one".