11947129579 has 48 divisors (see below), whose sum is σ = 15404774400. Its totient is φ = 9160905600.

The previous prime is 11947129553. The next prime is 11947129583. The reversal of 11947129579 is 97592174911.

11947129579 = 942³ + 943³ + ... + 955³.

It is not a de Polignac number, because 11947129579 - 2¹¹ = 11947127531 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11947129279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12999682 + ... + 13000600.

It is an arithmetic number, because the mean of its divisors is an integer number (320932800).

Almost surely, 2^11947129579 is an apocalyptic number.

11947129579 is a deficient number, since it is larger than the sum of its proper divisors (3457644821).

11947129579 is a wasteful number, since it uses less digits than its factorization.

11947129579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1297 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 55.

The spelling of 11947129579 in words is "eleven billion, nine hundred forty-seven million, one hundred twenty-nine thousand, five hundred seventy-nine".