11735720461 has 4 divisors (see below), whose sum is σ = 11759622624. Its totient is φ = 11711818300.

The previous prime is 11735720419. The next prime is 11735720471. The reversal of 11735720461 is 16402753711.

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: 16402753711 = 109 ⋅150483979.

It is a cyclic number.

It is not a de Polignac number, because 11735720461 - 2²⁵ = 11702166029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11735720461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11735720401) 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, 11950345 + ... + 11951326.

It is an arithmetic number, because the mean of its divisors is an integer number (2939905656).

Almost surely, 2^11735720461 is an apocalyptic number.

It is an amenable number.

11735720461 is a deficient number, since it is larger than the sum of its proper divisors (23902163).

11735720461 is an equidigital number, since it uses as much as digits as its factorization.

11735720461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902162.

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

The spelling of 11735720461 in words is "eleven billion, seven hundred thirty-five million, seven hundred twenty thousand, four hundred sixty-one".