1540553829359 has 4 divisors (see below), whose sum is σ = 1540792718400. Its totient is φ = 1540314940320.

The previous prime is 1540553829259. The next prime is 1540553829403. The reversal of 1540553829359 is 9539283550451.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540553829359 is a prime.

It is a super-2 number, since 2×1540553829359² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1540553829298 and 1540553829307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540553829259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119434847 + ... + 119447744.

It is an arithmetic number, because the mean of its divisors is an integer number (385198179600).

Almost surely, 2^{1540553829359} is an apocalyptic number.

1540553829359 is a deficient number, since it is larger than the sum of its proper divisors (238889041).

1540553829359 is an equidigital number, since it uses as much as digits as its factorization.

1540553829359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238889040.

The product of its (nonzero) digits is 29160000, while the sum is 59.

The spelling of 1540553829359 in words is "one trillion, five hundred forty billion, five hundred fifty-three million, eight hundred twenty-nine thousand, three hundred fifty-nine".