11946839357 has 4 divisors (see below), whose sum is σ = 12038036736. Its totient is φ = 11855641980.

The previous prime is 11946839351. The next prime is 11946839363. The reversal of 11946839357 is 75393864911.

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 an interprime number because it is at equal distance from previous prime (11946839351) and next prime (11946839363).

It is a cyclic number.

It is not a de Polignac number, because 11946839357 - 2⁴ = 11946839341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11946839351) 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, 45598493 + ... + 45598754.

It is an arithmetic number, because the mean of its divisors is an integer number (3009509184).

Almost surely, 2^11946839357 is an apocalyptic number.

It is an amenable number.

11946839357 is a deficient number, since it is larger than the sum of its proper divisors (91197379).

11946839357 is an equidigital number, since it uses as much as digits as its factorization.

11946839357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91197378.

The product of its digits is 4898880, while the sum is 56.

The spelling of 11946839357 in words is "eleven billion, nine hundred forty-six million, eight hundred thirty-nine thousand, three hundred fifty-seven".