11607735421 has 4 divisors (see below), whose sum is σ = 11607955200. Its totient is φ = 11607515644.

The previous prime is 11607735413. The next prime is 11607735437. The reversal of 11607735421 is 12453770611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12453770611 = 18251 ⋅682361.

It is a cyclic number.

It is not a de Polignac number, because 11607735421 - 2³ = 11607735413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11607735121) 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, 22500 + ... + 154018.

It is an arithmetic number, because the mean of its divisors is an integer number (2901988800).

Almost surely, 2^11607735421 is an apocalyptic number.

It is an amenable number.

11607735421 is a deficient number, since it is larger than the sum of its proper divisors (219779).

11607735421 is an equidigital number, since it uses as much as digits as its factorization.

11607735421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219778.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 11607735421 in words is "eleven billion, six hundred seven million, seven hundred thirty-five thousand, four hundred twenty-one".