11542292991 has 16 divisors (see below), whose sum is σ = 17265713920. Its totient is φ = 7620152760.

The previous prime is 11542292963. The next prime is 11542293031. The reversal of 11542292991 is 19929224511.

11542292991 is a `hidden beast` number, since 11 + 542 + 2 + 9 + 2 + 9 + 91 = 666.

It is not a de Polignac number, because 11542292991 - 2⁵ = 11542292959 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 (11542292941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2072425 + ... + 2077986.

It is an arithmetic number, because the mean of its divisors is an integer number (1079107120).

Almost surely, 2^11542292991 is an apocalyptic number.

11542292991 is a deficient number, since it is larger than the sum of its proper divisors (5723420929).

11542292991 is a wasteful number, since it uses less digits than its factorization.

11542292991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150523 (or 4150517 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The spelling of 11542292991 in words is "eleven billion, five hundred forty-two million, two hundred ninety-two thousand, nine hundred ninety-one".