11747564501 has 2 divisors, whose sum is σ = 11747564502. Its totient is φ = 11747564500.

The previous prime is 11747564467. The next prime is 11747564527. The reversal of 11747564501 is 10546574711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11744923876 + 2640625 = 108374^2 + 1625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11747564501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11747564531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5873782250 + 5873782251.

It is an arithmetic number, because the mean of its divisors is an integer number (5873782251).

Almost surely, 2^11747564501 is an apocalyptic number.

It is an amenable number.

11747564501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11747564501 is an equidigital number, since it uses as much as digits as its factorization.

11747564501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 11747564501 in words is "eleven billion, seven hundred forty-seven million, five hundred sixty-four thousand, five hundred one".