2635673401 has 2 divisors, whose sum is σ = 2635673402. Its totient is φ = 2635673400.

The previous prime is 2635673393. The next prime is 2635673419. The reversal of 2635673401 is 1043765362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384212025 + 1251461376 = 37205^2 + 35376^2 .

It is a cyclic number.

It is not a de Polignac number, because 2635673401 - 2³ = 2635673393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2635673701) 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, 1317836700 + 1317836701.

It is an arithmetic number, because the mean of its divisors is an integer number (1317836701).

Almost surely, 2^2635673401 is an apocalyptic number.

It is an amenable number.

2635673401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2635673401 is an equidigital number, since it uses as much as digits as its factorization.

2635673401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 2635673401 is about 51338.8098907639. The cubic root of 2635673401 is about 1381.3292172553.

The spelling of 2635673401 in words is "two billion, six hundred thirty-five million, six hundred seventy-three thousand, four hundred one".