1235849350957 has 6 divisors (see below), whose sum is σ = 1338227403882. Its totient is φ = 1140784016112.

The previous prime is 1235849350951. The next prime is 1235849350973. The reversal of 1235849350957 is 7590539485321.

It can be written as a sum of positive squares in 3 ways, for example, as 21167631081 + 1214681719876 = 145491^2 + 1102126^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1235849350957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1235849350895 and 1235849350904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235849350951) 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, 3656358858 + ... + 3656359195.

It is an arithmetic number, because the mean of its divisors is an integer number (223037900647).

Almost surely, 2^{1235849350957} is an apocalyptic number.

It is an amenable number.

1235849350957 is a deficient number, since it is larger than the sum of its proper divisors (102378052925).

1235849350957 is an equidigital number, since it uses as much as digits as its factorization.

1235849350957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7312718079 (or 7312718066 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 61.

The spelling of 1235849350957 in words is "one trillion, two hundred thirty-five billion, eight hundred forty-nine million, three hundred fifty thousand, nine hundred fifty-seven".