78383294331 has 8 divisors (see below), whose sum is σ = 105983046144. Its totient is φ = 51519536040.

The previous prime is 78383294263. The next prime is 78383294333. The reversal of 78383294331 is 13349238387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78383294331 - 2¹⁸ = 78383032187 is a prime.

It is a super-2 number, since 2×78383294331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78383294333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183998131 + ... + 183998556.

It is an arithmetic number, because the mean of its divisors is an integer number (13247880768).

Almost surely, 2^78383294331 is an apocalyptic number.

78383294331 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

78383294331 is a deficient number, since it is larger than the sum of its proper divisors (27599751813).

78383294331 is a wasteful number, since it uses less digits than its factorization.

78383294331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367996761.

The product of its digits is 2612736, while the sum is 51.

The spelling of 78383294331 in words is "seventy-eight billion, three hundred eighty-three million, two hundred ninety-four thousand, three hundred thirty-one".