263401551379 has 2 divisors, whose sum is σ = 263401551380. Its totient is φ = 263401551378.

The previous prime is 263401551353. The next prime is 263401551401. The reversal of 263401551379 is 973155104362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263401551379 - 2²⁹ = 262864680467 is a prime.

It is not a weakly prime, because it can be changed into another prime (263401551319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131700775689 + 131700775690.

It is an arithmetic number, because the mean of its divisors is an integer number (131700775690).

Almost surely, 2^263401551379 is an apocalyptic number.

263401551379 is a deficient number, since it is larger than the sum of its proper divisors (1).

263401551379 is an equidigital number, since it uses as much as digits as its factorization.

263401551379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 263401551379 in words is "two hundred sixty-three billion, four hundred one million, five hundred fifty-one thousand, three hundred seventy-nine".