78379288297387 has 32 divisors (see below), whose sum is σ = 98440896466944. Its totient is φ = 60625364889600.

The previous prime is 78379288297379. The next prime is 78379288297399.

78379288297387 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78379288297387 - 2³ = 78379288297379 is a prime.

It is a super-2 number, since 2×78379288297387² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78379288297298 and 78379288297307.

It is not an unprimeable number, because it can be changed into a prime (78379288297337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021062 + ... + 12561892.

It is an arithmetic number, because the mean of its divisors is an integer number (3076278014592).

Almost surely, 2^{78379288297387} is an apocalyptic number.

78379288297387 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

78379288297387 is a deficient number, since it is larger than the sum of its proper divisors (20061608169557).

78379288297387 is a wasteful number, since it uses less digits than its factorization.

78379288297387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11541499.

The product of its digits is 28677390336, while the sum is 88.

The spelling of 78379288297387 in words is "seventy-eight trillion, three hundred seventy-nine billion, two hundred eighty-eight million, two hundred ninety-seven thousand, three hundred eighty-seven".