1298379713157 has 6 divisors (see below), whose sum is σ = 1875437363462. Its totient is φ = 865586475432.

The previous prime is 1298379713101. The next prime is 1298379713173. The reversal of 1298379713157 is 7513179738921.

1298379713157 is a `hidden beast` number, since 12 + 98 + 379 + 7 + 13 + 157 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1298355418116 + 24295041 = 1139454^2 + 4929^2 .

It is not a de Polignac number, because 1298379713157 - 2⁶ = 1298379713093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1298379713094 and 1298379713103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298379713357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72132206278 + ... + 72132206295.

Almost surely, 2^{1298379713157} is an apocalyptic number.

It is an amenable number.

1298379713157 is a deficient number, since it is larger than the sum of its proper divisors (577057650305).

1298379713157 is a wasteful number, since it uses less digits than its factorization.

1298379713157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144264412579 (or 144264412576 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 63.

The spelling of 1298379713157 in words is "one trillion, two hundred ninety-eight billion, three hundred seventy-nine million, seven hundred thirteen thousand, one hundred fifty-seven".