11749069537 has 4 divisors (see below), whose sum is σ = 11765231296. Its totient is φ = 11732907780.

The previous prime is 11749069481. The next prime is 11749069543. The reversal of 11749069537 is 73596094711.

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.

It is a cyclic number.

It is not a de Polignac number, because 11749069537 - 2¹⁵ = 11749036769 is a prime.

It is a super-2 number, since 2×11749069537² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11749019537) 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, 8079789 + ... + 8081242.

It is an arithmetic number, because the mean of its divisors is an integer number (2941307824).

Almost surely, 2^11749069537 is an apocalyptic number.

It is an amenable number.

11749069537 is a deficient number, since it is larger than the sum of its proper divisors (16161759).

11749069537 is an equidigital number, since it uses as much as digits as its factorization.

11749069537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16161758.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 11749069537 in words is "eleven billion, seven hundred forty-nine million, sixty-nine thousand, five hundred thirty-seven".