78349031358 has 48 divisors (see below), whose sum is σ = 169105374480. Its totient is φ = 24056980992.

The previous prime is 78349031357. The next prime is 78349031359. The reversal of 78349031358 is 85313094387.

It is an interprime number because it is at equal distance from previous prime (78349031357) and next prime (78349031359).

It is a super-2 number, since 2×78349031358² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78349031358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78349031357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24721998 + ... + 24725166.

It is an arithmetic number, because the mean of its divisors is an integer number (3523028635).

Almost surely, 2^78349031358 is an apocalyptic number.

78349031358 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

78349031358 is an abundant number, since it is smaller than the sum of its proper divisors (90756343122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78349031358 is a wasteful number, since it uses less digits than its factorization.

78349031358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313 (or 3750 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 78349031358 in words is "seventy-eight billion, three hundred forty-nine million, thirty-one thousand, three hundred fifty-eight".