78776026383 has 4 divisors (see below), whose sum is σ = 105034701848. Its totient is φ = 52517350920.

The previous prime is 78776026379. The next prime is 78776026391. The reversal of 78776026383 is 38362067787.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 78776026383 - 2² = 78776026379 is a prime.

It is a super-2 number, since 2×78776026383² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78776026393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13129337728 + ... + 13129337733.

It is an arithmetic number, because the mean of its divisors is an integer number (26258675462).

Almost surely, 2^78776026383 is an apocalyptic number.

78776026383 is a deficient number, since it is larger than the sum of its proper divisors (26258675465).

78776026383 is a wasteful number, since it uses less digits than its factorization.

78776026383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26258675464.

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 78776026383 in words is "seventy-eight billion, seven hundred seventy-six million, twenty-six thousand, three hundred eighty-three".