1153753108642 has 4 divisors (see below), whose sum is σ = 1730629662966. Its totient is φ = 576876554320.

The previous prime is 1153753108633. The next prime is 1153753108661. The reversal of 1153753108642 is 2468013573511.

It is a Cunningham number, because it is equal to 1074129²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 1153753108641 + 1 = 1074129^2 + 1^2 .

It is a super-2 number, since 2×1153753108642² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1153753108592 and 1153753108601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288438277159 + ... + 288438277162.

Almost surely, 2^{1153753108642} is an apocalyptic number.

1153753108642 is a deficient number, since it is larger than the sum of its proper divisors (576876554324).

1153753108642 is an equidigital number, since it uses as much as digits as its factorization.

1153753108642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576876554323.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 1153753108642 in words is "one trillion, one hundred fifty-three billion, seven hundred fifty-three million, one hundred eight thousand, six hundred forty-two".