11681452739 has 8 divisors (see below), whose sum is σ = 12746353968. Its totient is φ = 10617043360.

The previous prime is 11681452733. The next prime is 11681452771. The reversal of 11681452739 is 93725418611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11681452739 - 2⁴ = 11681452723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11681452693 and 11681452702.

It is not an unprimeable number, because it can be changed into a prime (11681452733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72392 + ... + 169125.

It is an arithmetic number, because the mean of its divisors is an integer number (1593294246).

Almost surely, 2^11681452739 is an apocalyptic number.

11681452739 is a deficient number, since it is larger than the sum of its proper divisors (1064901229).

11681452739 is a wasteful number, since it uses less digits than its factorization.

11681452739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245925.

The product of its digits is 362880, while the sum is 47.

The spelling of 11681452739 in words is "eleven billion, six hundred eighty-one million, four hundred fifty-two thousand, seven hundred thirty-nine".