12535435700557 has 64 divisors (see below), whose sum is σ = 16673555496960. Its totient is φ = 9123535411200.

The previous prime is 12535435700533. The next prime is 12535435700617. The reversal of 12535435700557 is 75500753453521.

It is a happy number.

It is not a de Polignac number, because 12535435700557 - 2⁴³ = 3739342678349 is a prime.

It is a super-2 number, since 2×12535435700557² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12535435700857) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 787443244 + ... + 787459162.

It is an arithmetic number, because the mean of its divisors is an integer number (260524304640).

Almost surely, 2^{12535435700557} is an apocalyptic number.

12535435700557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12535435700557 is a deficient number, since it is larger than the sum of its proper divisors (4138119796403).

12535435700557 is a wasteful number, since it uses less digits than its factorization.

12535435700557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20482.

The product of its (nonzero) digits is 11025000, while the sum is 52.

The spelling of 12535435700557 in words is "twelve trillion, five hundred thirty-five billion, four hundred thirty-five million, seven hundred thousand, five hundred fifty-seven".