1397612958158 has 4 divisors (see below), whose sum is σ = 2096419437240. Its totient is φ = 698806479078.

The previous prime is 1397612958127. The next prime is 1397612958169. The reversal of 1397612958158 is 8518592167931.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1397612958158² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1397612958094 and 1397612958103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349403239538 + ... + 349403239541.

It is an arithmetic number, because the mean of its divisors is an integer number (524104859310).

Almost surely, 2^{1397612958158} is an apocalyptic number.

1397612958158 is a deficient number, since it is larger than the sum of its proper divisors (698806479082).

1397612958158 is an equidigital number, since it uses as much as digits as its factorization.

1397612958158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698806479081.

The product of its digits is 32659200, while the sum is 65.

The spelling of 1397612958158 in words is "one trillion, three hundred ninety-seven billion, six hundred twelve million, nine hundred fifty-eight thousand, one hundred fifty-eight".