2401511956399 has 2 divisors, whose sum is σ = 2401511956400. Its totient is φ = 2401511956398.

The previous prime is 2401511956381. The next prime is 2401511956477. The reversal of 2401511956399 is 9936591151042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2401511956399 - 2¹¹ = 2401511954351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2401511956339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200755978199 + 1200755978200.

It is an arithmetic number, because the mean of its divisors is an integer number (1200755978200).

Almost surely, 2^{2401511956399} is an apocalyptic number.

2401511956399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2401511956399 is an equidigital number, since it uses as much as digits as its factorization.

2401511956399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2624400, while the sum is 55.

The spelling of 2401511956399 in words is "two trillion, four hundred one billion, five hundred eleven million, nine hundred fifty-six thousand, three hundred ninety-nine".