7882811401 has 6 divisors (see below), whose sum is σ = 7915714206. Its totient is φ = 7850044800.

The previous prime is 7882811393. The next prime is 7882811411. The reversal of 7882811401 is 1041182887.

It can be written as a sum of positive squares in 3 ways, for example, as 545175801 + 7337635600 = 23349^2 + 85660^2 .

It is not a de Polignac number, because 7882811401 - 2³ = 7882811393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7882811411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9780 + ... + 125941.

It is an arithmetic number, because the mean of its divisors is an integer number (1319285701).

Almost surely, 2^7882811401 is an apocalyptic number.

It is an amenable number.

7882811401 is a deficient number, since it is larger than the sum of its proper divisors (32902805).

7882811401 is an equidigital number, since it uses as much as digits as its factorization.

7882811401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136203 (or 135962 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 40.

The square root of 7882811401 is about 88785.1980963043. The cubic root of 7882811401 is about 1990.1862069136.

The spelling of 7882811401 in words is "seven billion, eight hundred eighty-two million, eight hundred eleven thousand, four hundred one".