1343525991957 has 12 divisors (see below), whose sum is σ = 1941327003564. Its totient is φ = 895370910720.

The previous prime is 1343525991943. The next prime is 1343525991961. The reversal of 1343525991957 is 7591995253431.

1343525991957 is a `hidden beast` number, since 1 + 3 + 4 + 3 + 525 + 99 + 19 + 5 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1082513312721 + 261012679236 = 1040439^2 + 510894^2 .

It is not a de Polignac number, because 1343525991957 - 2⁶ = 1343525991893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1343525991894 and 1343525991903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343525990957) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 26063148 + ... + 26114645.

It is an arithmetic number, because the mean of its divisors is an integer number (161777250297).

Almost surely, 2^{1343525991957} is an apocalyptic number.

It is an amenable number.

1343525991957 is a deficient number, since it is larger than the sum of its proper divisors (597801011607).

1343525991957 is a wasteful number, since it uses less digits than its factorization.

1343525991957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52180660 (or 52180657 counting only the distinct ones).

The product of its digits is 45927000, while the sum is 63.

The spelling of 1343525991957 in words is "one trillion, three hundred forty-three billion, five hundred twenty-five million, nine hundred ninety-one thousand, nine hundred fifty-seven".