1381658657126 has 16 divisors (see below), whose sum is σ = 2262964547088. Its totient is φ = 627452061600.

The previous prime is 1381658657089. The next prime is 1381658657149. The reversal of 1381658657126 is 6217568561831.

It is a super-2 number, since 2×1381658657126² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28705445 + ... + 28753536.

It is an arithmetic number, because the mean of its divisors is an integer number (141435284193).

Almost surely, 2^{1381658657126} is an apocalyptic number.

1381658657126 is a deficient number, since it is larger than the sum of its proper divisors (881305889962).

1381658657126 is a wasteful number, since it uses less digits than its factorization.

1381658657126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57460087.

The product of its digits is 14515200, while the sum is 59.

The spelling of 1381658657126 in words is "one trillion, three hundred eighty-one billion, six hundred fifty-eight million, six hundred fifty-seven thousand, one hundred twenty-six".