1378883860157 has 2 divisors, whose sum is σ = 1378883860158. Its totient is φ = 1378883860156.

The previous prime is 1378883860091. The next prime is 1378883860247. The reversal of 1378883860157 is 7510683888731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1355953118116 + 22930742041 = 1164454^2 + 151429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1378883860157 - 2¹⁸ = 1378883598013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1378883860093 and 1378883860102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1378883869157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689441930078 + 689441930079.

It is an arithmetic number, because the mean of its divisors is an integer number (689441930079).

Almost surely, 2^{1378883860157} is an apocalyptic number.

It is an amenable number.

1378883860157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378883860157 is an equidigital number, since it uses as much as digits as its factorization.

1378883860157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54190080, while the sum is 65.

The spelling of 1378883860157 in words is "one trillion, three hundred seventy-eight billion, eight hundred eighty-three million, eight hundred sixty thousand, one hundred fifty-seven".