245378136379 has 2 divisors, whose sum is σ = 245378136380. Its totient is φ = 245378136378.

The previous prime is 245378136371. The next prime is 245378136403. The reversal of 245378136379 is 973631873542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245378136379 - 2³ = 245378136371 is a prime.

It is a super-2 number, since 2×245378136379² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245378136371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122689068189 + 122689068190.

It is an arithmetic number, because the mean of its divisors is an integer number (122689068190).

Almost surely, 2^245378136379 is an apocalyptic number.

245378136379 is a deficient number, since it is larger than the sum of its proper divisors (1).

245378136379 is an equidigital number, since it uses as much as digits as its factorization.

245378136379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 58.

The spelling of 245378136379 in words is "two hundred forty-five billion, three hundred seventy-eight million, one hundred thirty-six thousand, three hundred seventy-nine".