78751662113419 has 2 divisors, whose sum is σ = 78751662113420. Its totient is φ = 78751662113418.

The previous prime is 78751662113381. The next prime is 78751662113447. The reversal of 78751662113419 is 91431126615787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78751662113419 - 2¹³ = 78751662105227 is a prime.

It is a super-2 number, since 2×78751662113419² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78751662113489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39375831056709 + 39375831056710.

It is an arithmetic number, because the mean of its divisors is an integer number (39375831056710).

Almost surely, 2^{78751662113419} is an apocalyptic number.

78751662113419 is a deficient number, since it is larger than the sum of its proper divisors (1).

78751662113419 is an equidigital number, since it uses as much as digits as its factorization.

78751662113419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 61.

The spelling of 78751662113419 in words is "seventy-eight trillion, seven hundred fifty-one billion, six hundred sixty-two million, one hundred thirteen thousand, four hundred nineteen".