863870651419 has 2 divisors, whose sum is σ = 863870651420. Its totient is φ = 863870651418.

The previous prime is 863870651393. The next prime is 863870651431. The reversal of 863870651419 is 914156078368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 863870651419 - 2⁵ = 863870651387 is a prime.

It is a super-2 number, since 2×863870651419² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (863870651219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431935325709 + 431935325710.

It is an arithmetic number, because the mean of its divisors is an integer number (431935325710).

Almost surely, 2^863870651419 is an apocalyptic number.

863870651419 is a deficient number, since it is larger than the sum of its proper divisors (1).

863870651419 is an equidigital number, since it uses as much as digits as its factorization.

863870651419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 863870651419 in words is "eight hundred sixty-three billion, eight hundred seventy million, six hundred fifty-one thousand, four hundred nineteen".