11640710426 has 4 divisors (see below), whose sum is σ = 17461065642. Its totient is φ = 5820355212.

The previous prime is 11640710413. The next prime is 11640710429. The reversal of 11640710426 is 62401704611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62401704611 = 1499 ⋅41628889.

It can be written as a sum of positive squares in only one way, i.e., 7072978201 + 4567732225 = 84101^2 + 67585^2 .

It is a super-2 number, since 2×11640710426² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11640710392 and 11640710401.

It is not an unprimeable number, because it can be changed into a prime (11640710429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2910177605 + ... + 2910177608.

Almost surely, 2^11640710426 is an apocalyptic number.

11640710426 is a deficient number, since it is larger than the sum of its proper divisors (5820355216).

11640710426 is an equidigital number, since it uses as much as digits as its factorization.

11640710426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820355215.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 11640710426 in words is "eleven billion, six hundred forty million, seven hundred ten thousand, four hundred twenty-six".