2981777401 has 2 divisors, whose sum is σ = 2981777402. Its totient is φ = 2981777400.

The previous prime is 2981777399. The next prime is 2981777429. The reversal of 2981777401 is 1047771892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2961536400 + 20241001 = 54420^2 + 4499^2 .

It is a cyclic number.

It is not a de Polignac number, because 2981777401 - 2¹ = 2981777399 is a prime.

It is a super-2 number, since 2×2981777401² = 17781992938228629602, which contains 22 as substring.

Together with 2981777399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2981777471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490888700 + 1490888701.

It is an arithmetic number, because the mean of its divisors is an integer number (1490888701).

Almost surely, 2^2981777401 is an apocalyptic number.

It is an amenable number.

2981777401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2981777401 is an equidigital number, since it uses as much as digits as its factorization.

2981777401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 2981777401 is about 54605.6535626120. The cubic root of 2981777401 is about 1439.3234670878.

The spelling of 2981777401 in words is "two billion, nine hundred eighty-one million, seven hundred seventy-seven thousand, four hundred one".